Answer:
5x + 2
Step-by-step explanation:
Let the second binomial = y
(5x - 2) * y = 25x^2 - 4
note 25x^2 - 4 = (5x)^2 - 2^2 = (5x - 2)(5x + 2)
Then
(5x - 2) * y = (5x - 2((5x + 2)
Compare bth sides, we get
y = 5x + 2
Answer:
Step-by-step explanation:
Usually I report these kinds of questions. Most of the time you need to know the choices. This question does not require them.
Factor
25x^2 - 4 This binomial lends itself to factoring by difference of squares.
√25x^2 = 5x
√4 = 2
Those two monomials have other factors, but these are the only 2 that matter
So 25x^2 - 4 = (5x + 2) and (5x - 2)
The second binomial was (5x + 2)
