Which expression is a difference of squares with a factor of 2x + 5? 4x2 + 10 4x2 – 10 4x2 + 25 4x2 – 25

Question

asked Feb 25, 2021 55.5k views

2 Answers

Newester · Answer 1 · 2021-02-28T12:24:11+0000

Answer:

4x^2 -25

Explanation:

The other factor of the difference of squares is the "conjugate" of the given one: (2x -5). Then their product is ...

(2x +5)(2x -5) = (2x)^2 -(5)^2 = 4x^2 -25