Question

Given the quadratic function f(x) = x^2 – 14x + 49, find a value of x such that f(x) = 36

Answer 1

x^2-14x-49 factors to (x-7)^2
so (x-7)^2=36
square root both sides
x-7=6
x=13

Answer 2

13,-1

Answer 3

x^2-14x+49=36
x^2-14x+13=0
do u know how to solve it now?

Answer 4

Damonky's solution's better :D

Answer 5

13 and 1

Answer 6

ignore the minus typo

Answer 7

damonky solution is better ya but 1 is also the possible answer rite? substitute in 1 into the equation you will still get 36 .