Answer:
D) 2(x + 10)(x - 10)
Explanation:
2x^2 - 200
factor out a 2
2(x^2 -100)
both x^2 and 100 are squares so
a^2 – b^2 = (a + b)(a – b)
a=x and b = 10
2(x^2 -100) = 2( x-10 )(x+10)
= 2(x+10) (x-10) the order in which we multiply doesn't matter
9.4m questions
12.2m answers