After increasing a number by 1, its square and cube are added in it. If this expression is 5220, the

Akanksha Mishra   11 years AGO

suppose that number is x;
according to question:
(x+1) + square of (x) + cube of (x) = 5220
(17+1)+ 17*17 + 17*17*17 = 5220
18 + 289 + 4913 = 5220
5220 = 5220
so answer will be option 8
I hope my answer would easy to understand!!

Like? Yes (16) | No (7)  

Dr.Dipin Singh   11 years AGO

(x+1)+x^2+x^3= 5220
solving it, we get,
x=17

Like? Yes (2) | No   

HARMEET KAUR   11 years AGO

17^2+17^3 +(17+1)= 5220

Like? Yes (3) | No (1)  

Udhaya kumar   11 years AGO

(x+1)+x^2+x^3=5220
x^3+x^2+x-5219=0
by solving this we get x=17.......

Like? Yes (3) | No (2)  

Chandni Maurya   11 years AGO

ans=17
let the no is x.
according to question,
x+1+x^2+x^3=5220
x+x^2+x^3-5219=0
solving above eqn. we get,
x=17,-9,-9 (discarding -9)
x=17

Like? Yes (3) | No (2)  

Bhargaviinduri   11 years AGO

say the number is x
and The expression is (x+1)+x^2+x^3=5220
by solving this expression or by verifying options we get x=17

Like? Yes (2) | No (1)  

ANKIT GOYAL   11 years AGO

18+289+4913=5220

Like? Yes (1) | No   

Advitiya Arora   11 years AGO

suppose that number is x;
according to question:
(x+1) + square of (x) + cube of (x) = 5220
(17+1)+ 17*17 + 17*17*17 = 5220
18 + 289 + 4913 = 5220
5220 = 5220
so answer will be option 8

Like? Yes (1) | No   

KRISHNAN   11 years AGO

17^2=289 and 17^3=4913 so adding this to we get
5202 which the closest to 5220.
To prove it if we add 1 to 17 we get 18 and add 289 and 4913 which is 5220
so the option 8 is the correct answer

Like? Yes (1) | No (1)  

Devendra Marghade   11 years AGO

If number=x
Given, (x+1)+x^2+x^3=5220
x^3+x^2+x-5219=0
Solving x=17

Like? Yes (1) | No (1)  

Grishma Shah   11 years AGO

The no. is 17.
16+1=17
17*17 + 17*17*17 + 17+1 = 289 + 4913 + 17 + 1
= 5220.

Like? Yes (1) | No (1)  

sai sirish   11 years AGO

given x+x^2+x^3+1=5220,(x+1)(x^2+1)=5220=>18*290
=>x=17

Like? Yes (1) | No (1)  

Ankit Goyal   11 years AGO

(X^2 + 1)(X + 1) = 5220
X = 17 SATISFIES THE CONDITION

Like? Yes (1) | No (1)  

Amit Kumar   11 years AGO

17^2 + 17^3+ 18 = 5220

Like? Yes (1) | No (1)  

Anchuri Sandeep Reddy   11 years AGO

(x+1)+x^2+x^3=5220,

This give a solution as x=17.

Like? Yes (1) | No (1)  

AMIT JAISWAL   11 years AGO

Since according to question the square becomes
x+1+x^2+x^3=5220
x^3+x^2+x-5219=0
now by hit and trial method put 17 in place of x we will get the sum =0
So, 17 will be the answer.

Like? Yes (1) | No (1)  

amit bhagat   11 years AGO

Since according to question the square becomes
x+1+x^2+x^3=5220
x^3+x^2+x-5219=0
now by hit and trial method put 17 in place of x we will get the sum =0
So, 17 will be the answer.

Like? Yes (1) | No (1)  

niharika   11 years AGO

(17+1)+(17^2)+(17^3)=18+4913+289=5220

Like? Yes (1) | No (1)  

vishal barun   11 years AGO

let the number be x
(x+1)+x*x+x*x*x=5220
therefore , after solving the cubic eq in x , we get
x=17 (option 8)

Like? Yes (1) | No (1)  

lovely verma   11 years AGO

according to the question equation will be-
x+1+x^2+x^3=5220,
x^3+x^2+x-5219=0
we put 17 which satisfies the equation,
so answer =17

Like? Yes (1) | No (1)  

DHIRENDRA    11 years AGO

no is 17
according to given condition
17+1+17*17+17*17*17=5220
answer is 17

Like? Yes (1) | No (1)  

Abirudh reddy   11 years AGO

1+0 =0
2+(2*2)+(2*2*2)=14
.
.
18+(17*17)+(17*17*17)=5220

Like? Yes (1) | No (1)  

sandy   11 years AGO

17^3+17^2+17+1=5220

Like? Yes (1) | No (1)  

rohit kumar   11 years AGO

(17^3)+(17^2)+18
i.e 4913+289+18=5220
So number will be,17...ANS

Like? Yes (2) | No (2)  

kusuma c   11 years AGO

LET the no be x
x+1and X^2,x^3 are added,x+1+x^2+x^3=5220
x+1+x^2(1+x) => (x+1)(1+x^2)=5220 =>x=17
bcoz 18*290=5220

Like? Yes (1) | No (1)  

Shubham Saxena   11 years AGO

17+1=18
Square of 17= 289
cube of 17= 4913
on adding 4913+289+18
we get 5220

Like? Yes (2) | No (2)  

Pratiksha Gupta   11 years AGO

17+1=18
Square of 17= 289
cube of 17= 4913
on adding 4913+289+18
we get 5220

Like? Yes (1) | No (1)  

Shubham Saxena   11 years AGO

17+1=18
Square of 17= 289
cube of 17= 4913
on adding 4913+289+18
we get 5220

Like? Yes (1) | No (1)  

Ann Mary Jolly   11 years AGO

Ans: 8) 17
Let the no x.
x+1 + x^2 + x^3 = 5220
(x+1)+x^2(x+1) = 5220
(x+1)*(x^2+1) = 5220
On solving,we get x = 17

Like? Yes (1) | No (2)