Question

Find the zeros of each function by factoring. f(x)=x^2–10x+9

Answer 1

1) Let's find the zeros of this function f(x) =x²-10x +9

Since a=1, then which two numbers whose sum is equal to -10?

And their product is equal to 9?

S = -9 + -1 = -10

P = -9 x -1 = 9

2) So we can rewrite that equation as

f(x) = (x-9)(x-1)