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Xelga [282]
3 years ago
10

What is the product x^2-16 over 2x+8 • x^3-2x^2+x over x^2+3x-4

Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:

  \dfrac{x^3-5x^2 +4x}{2x+8}

Step-by-step explanation:

The basic idea is to factor each expression and cancel common factors from numerator and denominator.

  \dfrac{x^2-16}{2x+8}\cdot\dfrac{x^3-2x^2 +x}{x^2+3x-4}=\dfrac{(x-4)(x+4)}{2(x+4)}\cdot\dfrac{x(x-1)^2}{(x+4)(x-1)}\\\\=\dfrac{(x-4)x(x-1)}{2(x+4)}\cdot\dfrac{(x+4)(x-1)}{(x+4)(x-1)}\\\\=\boxed{\dfrac{x^3-5x^2 +4x}{2x+8}}

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