Question

(10) \( \frac{x^{2}-3 x-4}{x^{2}-4 x} \times \frac{x^{2}-4 x+4}{x^{2}-4} \) (20) \( \frac{a^{2}+a b-2 b^{2}}{a^{2}-2 a b-3 b^{2}} \times \frac{a^{2}-b^{2}}{a b+2 b^{2}} \div \frac{a^{2}-2 a b+b^{2}}{a^{2}-3 a b} \)

          (10) \( \frac{x^{2}-3 x-4}{x^{2}-4 x} \times \frac{x^{2}-4 x+4}{x^{2}-4} \)
(20) \( \frac{a^{2}+a b-2 b^{2}}{a^{2}-2 a b-3 b^{2}} \times \frac{a^{2}-b^{2}}{a b+2 b^{2}} \div \frac{a^{2}-2 a b+b^{2}}{a^{2}-3 a b} \)

(10) (x^2-3 x-4)/(x^2-4 x)×(x^2-4 x+4)/(x^2-4)
(20) (a^2+a b-2 b^2)/(a^2-2 a b-3 b^2)×(a^2-b^2)/(a b+2 b^2)÷(a^2-2 a b+b^2)/(a^2-3 a b)

Added by John D.

Introductory and Intermediate Algebra for College Students

Robert Blitzer 6th Edition

Chapter 6

Instant Answer

Solved by Expert Ankit Gupta

08/21/2020

Step 1

Expression 1: \( \frac{x^{2}-3x-4}{x^{2}-4x} \) - Numerator: \( x^{2} - 3x - 4 = (x - 4)(x + 1) \) - Denominator: \( x^{2} - 4x = x(x - 4) \) Expression 2: \( \frac{x^{2}-4x+4}{x^{2}-4} \) - Numerator: \( x^{2} - 4x + 4 = (x - 2)^{2} \) - Denominator: \( x^{2} - Show more…

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(10) \( \frac{x^{2}-3 x-4}{x^{2}-4 x} \times \frac{x^{2}-4 x+4}{x^{2}-4} \) (20) \( \frac{a^{2}+a b-2 b^{2}}{a^{2}-2 a b-3 b^{2}} \times \frac{a^{2}-b^{2}}{a b+2 b^{2}} \div \frac{a^{2}-2 a b+b^{2}}{a^{2}-3 a b} \)