Question

Сократите дробь $frac{16a^2-36b^2}{(2a+3b)^2}$

Answer 1

$16a^{2}-36b^{2}=(4a)^{2}-(6b)^{2}=(4a-6b)(4a+6b)=4(2a-3b)(2a+3b) \ frac{4(2a-3b)(2a+3b)}{(2a+3b)^{2} }=frac{4(2a-3b)}{2a+3b}$