Question

whats the answer

Factor completely: 50x2 – 32
Answer

(5x – 8)(10x + 4)

(5x – 8)(10x – 4)

2(5x – 4)(5x – 4)

2(5x – 4)(5x + 4)

Answer 1

Take out the common factor, then use the identity \(a^2-b^2 = (a+b)(a-b)\) to factorize it.

Answer 2

i have no clue what any of that means can u just give me the answer

Answer 3

Well, the common factor between 50 and 32 is 2, so take 2 out.
You'd get this:

2(25x^2 - 16)

You can break these perfect squares into the form: (a+b)(a-b)

Therefore, your answer is 2(5x+4)(5x-4)

Answer 4

thats not even a choice

Answer 5

That's the same as your last choice: 2(5x-4)(5x+4)
It's the same thing, only reversed.
Just like how 2+6 = 8 and 6+2 = 8