Question

Simplify using identities (2x+5)^2-
(2x-5)^2

Answer 1

Step-by-step explanation:

${x}^{2} - {y}^{2} = (x - y)(x + y)$

So

$(2x + 5)^{2} - {(2x - 5)}^{2} = >$$(2x + 5 - 2x + 5)(2x + 5 + 2x - 5)$

$= > 10(4x) = > 40x$

Hope it helps you.