Question

expand (2a-10b)(2a+10b)=expand and give the final answers​

Answer 1

Question -

$</u><u>E</u><u>xpand </u><u>-</u><u> </u><u>\: (2a - 10b)(2a + 10b)$

Solution -

$= (2a - 10b)(2a + 10b)$

$= {(2a)}^{2} - {(10b)}^{2}$

$= 4 {a}^{2} - 100 {b}^{2}$

Formula used here -

$(a + b)(a - b) = {a}^{2} - {b}^{2}$