The function f is defined is defined as f 2x 3 x-3 x 2 What is f 31 a 924

HERE F(2X+3)=(X-3)(X+2)
IF WE PUT X=14 WE GET,
F(2X+3)=F(2*14+3)=F(31)
HENCE(14-3)(14+2)=11*16=176
ANSWER:176
10 years agoHelpfull: Yes(7) No(0)
2x+3 = 31
x= 14
so (14-3)*(14+2)=176
10 years agoHelpfull: Yes(2) No(0)
31 can be written as 2(14)+3
so f(31)=11*16=176
10 years agoHelpfull: Yes(1) No(0)
putting x=14
f(31)=11*16=176
10 years agoHelpfull: Yes(1) No(0)
put 2x+3=31 u get x=14 then put x on rhs u get ans 176
10 years agoHelpfull: Yes(1) No(0)
its c)

f(2x+3)= f(31)
hence,
2x+3 = 1
2x = 31-3
2x = 28
x = 14
putting this value in function

f(2x+3)=(x-3) (x+2)

f(2*14+3) = (14-3) (14+2)
f(31) = (11)(16)
f(31) = 176

hence, its c)176
10 years agoHelpfull: Yes(1) No(0)
2x+3=31
we get x = 14.
now f(2x+3)=f(31)= (14-3)(14+2)=11*16 = 176
10 years agoHelpfull: Yes(0) No(0)
ans is c 176, as for 31, 2x+3=31, i.e x=14, so 14-3=11 and 14+2=16, then 11*16=176
10 years agoHelpfull: Yes(0) No(0)
c here x=14 if we submit in the equation we get the value of f(31)
10 years agoHelpfull: Yes(0) No(0)
if x=1 then answer will be -9
if x=2 then answer will be -4
same way do like that
subtitude x=14 then answer will be 176
10 years agoHelpfull: Yes(0) No(2)
ans:176
given 2x+3=31 => x=14
f(31)=(14-2)(14+3)=11*16=176
10 years agoHelpfull: Yes(0) No(0)
Thanks all of you :)
10 years agoHelpfull: Yes(0) No(0)
ans is 176
10 years agoHelpfull: Yes(0) No(0)
ans=176
2*14+3=31
10 years agoHelpfull: Yes(0) No(0)

The function f is defined is defined as f(2x+3)= (x-3)(x+2)
What is f(31)?

a. 924
b. 4154
c. 176
d. 174