exam Maths Puzzle Numerical Ability

solve the following by factoring:

5t squared - 10t = 0

x squared - 3x - 10 = 0

if f(x) = 3x squared + 5x -2 find

f(-2)

f(4)

solve

3x squared + 19x - 14 = 0 using quadratic formula.

Read Solution (Total 0)

exam Other Question

I need help with the following question. The problem needs to be solved using subsitution. The answer that I got does not agree with the answer in the book.

y=x^2
x^2+y^2=1 What is the square root of y+12=5? (the square root sign is over y+12)