Question

$- 4a ^{2} + 4ab - 4ac$
factorize☝️

please explain step by step​

Answer 1

Answer:

${ - 4a}^{2} + 4ab - 4ac = 0 \\ - 4a(a - b + c) = 0 \\ a - b + c = 0 \\ a = b - c$

Answer 2

Answer:

$- 4 {a}^{2} + 4ab - 4ac \\ {2}^{2} .a( - a + b - c) \\ 4a( - a + b - c)$