Factor completely and then place the factors in the proper location on the grid.

a2 - a - 20

For this case we have the following polynomial:

We must factor the polynomial.

To do this we look for two numbers that are added equal to -1 and multiplied equal to -20.

Factoring we have:

The factored expression is given by:

use formula for the circle a=3.14

step-by-step explanation:

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.