\left(2-50x^2\right)=?
\text{ a. }2(1-5x)^2
\text{ b. }2(1+5x)^2
c. (2-5x)(2+5x)
d. 2(1-5x)(1+5x)
let us consider \left(2-50x^2\right)=2\left(1-25x^2\right) by taking 2 as the common factor
By using the formula a^2-b^2=(a-b)(a+b)
= 2 (1 – 5x) (1 + 5x)
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