Question

Factor 2x^2 - 50 completely.

A) 2(x + 5)^2

B) 2(x - 5)^2

C) (x + 5)(x - 5)

D) 2(x + 5)(x - 5)

Answer 1

The answer is C

Explanation:

There are 2 X's therefore there will be two sets of quotations with one X in each. Then find the multiples of 50.

Try -5 and +5 go in with the x which makes the answer C

Answer 2

2 ( x + 5 ) ( x − 5 )

Explanation:

Since both terms are perfect squares, factor using the difference of squares formula, a 2 − b 2 = (a + b ) ( a − b ) where a = x and b = 5.