Question

Factor the following trinomials x2-18x+81

Answer 1

Answer:

(x - 9)(x - 9)

Step-by-step explanation:

Hey there!

Well to factor,

x^2-18x+81

we need to figure out what times what equal 81 and adds together to get -18.

-9*-9 = 81

-9 + -9 = -18

x*x = x^2

Factored - (x - 9)(x - 9)

Hope this helps :)

Answer 2

X = 9.
This is found using the MAN strategy, and can be proven by subbing 9 into the equation for x and the solution equaling zero.