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Lelu [443]
3 years ago
9

Please help 50 points! Simplify the expressed

Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

Step-by-step explanation:

\frac{x^{2} -x-12}{x+4} * \frac{2x^{2}-32 }{x^{2} -8x+16}  rewrite as multiplication

\frac{x^{2} +3x-4x-12}{x+4} * \frac{2(x^{2}-16) }{x^{2} -8x+16}  look to factor

\frac{x(x+3)-4(x+3)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}  , difference of 2 squares and perfect square

\frac{(x+3)(x-4)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}, finish factoring and simplify

2(x+3)

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The solution would be like this for this specific problem:

Volume of a cylinder = pi * r^2 * h 

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If the top half is filled with sand, then:

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Gnesinka [82]
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