Question

Factor the expression


`x {}^(2) - 20x + 100`
A.

`(x + 10) {}^(2)`
B.

`(x - 10) {}^(2)`
C.

`(x - 5)(x - 25)`
D.

`(x - 10)(x + 10)`
​

Answer 1

B

Explanation:

u find two numbers that multiply and equal 100 such as -10 ,and -10 that when added up equal the second term -20 and since x has nothing next to it u get (x-10) but you square it because both term answers are the same so you end up with

(x-10)squared