# What are the zeros of y=(x-4)(x+5)?

Nov 14, 2016

$x = 4 , x = - 5$

#### Explanation:

The zeros of the function y are the values of x that make y equal zero.

To find these values equate y to zero and solve for x.

$\Rightarrow \left(x - 4\right) \left(x + 5\right) = 0$

solve : $x - 4 = 0 \Rightarrow x = 4$

solve : $x + 5 = 0 \Rightarrow x = - 5$