Question

3a^2 + 12b^2 -12ab
solve

Answer 1

$\huge\bold\green{Solution :\longrightarrow}$

= 3 (a² + 4b² - 4ab)

= 3 {(a)² + (2b)² - 2.a.2b}

= 3 (a - 2b)²

= 3 (a - 2b) (a - 2b)

Answer 2

here,


take 3 common

3(a² + 4b² - 4ab) ...........(1)

now,


a ² + (2b)² - 2 (a) (2b)

= (a - 2b )²

using, (x - y)² = x² -2xy + y²



thus, equation (1) becomes

3(a-2b)² = 3 (a-2b) (a-2b) . hence,proved.

KSHITIJ