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RS Aggarwal Solutions Class 8 Mathematics Solutions for Factorisation Exercise 7E in Chapter 7 - Factorisation

Question 2 Factorisation Exercise 7E

\left(2x-32x^3\right)=?

a. 2(x-4)(x+4

\text{ b. }2x(1-2x)^2

\text{ c. }2x(1+2x)^2

d. 2x(1-4x)(1+4x)

Answer:

let us consider \left(2 x-32 x^{3}\right)=2 x\left(1-16 x^{2}\right) by taking 2x as the common factor

By using the formula a^{2}-b^{2}=(a-b)(a+b)

= 2x (1 – 4x) (1 + 4x)

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