Question

factorise (2a)^2-(b)^2​

Answer 1

Answer:

Take product of first n last terms 2a^2×2b^2=4(ab)^ 2 Middle term is 5ab We should find two ... [First multiply the coefficient of a^2 and coefficient of b^2 2.

I think my ans is helpful for you

Answer 2

Answer:

$( \sqrt{2}a + b )( \sqrt{2} a - b)$

it is factorized by formula

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