Question

Factor -4 + 8a - 4a 2. -4(a - 1)2 -4(a + 1)2 4(a - 1)2

Answer 1

I hope this helps you

Answer 2

Answer:

The factor of $-4+8a-4a^2$ is $-4(a-1)^2$

A is correct.

Step-by-step explanation:

Given: $-4+8a-4a^2$

We need to factor the trinomial.

First we will take common factor from each term.

$\Rightarrow -4\cdot 1-4\cdot -2a-4\cdot a^2$

Take out -4 common

$\Rightarrow -4(1-2a+a^2)$

Using formula of perfect square.

$x^2-2xy+y^2=(x-y)^2$

$\Rightarrow -4(a-1)^2$

Hence, The factor of $-4+8a-4a^2$ is $-4(a-1)^2$