Question

X^2+20x+c find the value of c that makes a perfect square trinomial

Answer 1

This means c=100. The factored form is
`(x+10)^2`.

Explanation:

A perfect square is a trinomial that factors into the form
`(x+a)^2`. To find the value of C to finish the perfect square divide 20 by 2 and square it.

20/2 = 10

10*10=100

This means c=100. The factored form is
`(x+10)^2`.