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1 year ago

I need help really bad help me pls

Mathematics

2 answers:

olasank [31]1 year ago

3 0

Answer: w= 13

Step-by-step explanation: 8+5 is 13

marysya [2.9K]1 year ago

3 0

Answer: 13
why: you have to add 8 to both sides so it would cancel out the -8 and add 8 to the five so you’ll get 13

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shtirl [24]

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$\implies 2x^2 - 7 = a(x^2+2) + (bx+c)x = (a+b)x^2+cx + 2a$

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Now, in the integral we get

$\displaystyle\int\frac{x^4+7}{x^3+2x}\,\mathrm dx = \int\left(x+\frac7{2x} - \frac{11x}{2(x^2+2)}\right)\,\mathrm dx$

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$\displaystyle \int x\,\mathrm dx + \frac72\int\frac{\mathrm dx}x - \frac{11}4 \int\frac{\mathrm dy}y \\\\ =\displaystyle \frac{x^2}2+\frac72\ln|x|-\frac{11}4\ln|y| + C \\\\ =\displaystyle \boxed{\frac{x^2}2 + \frac72\ln|x| - \frac{11}4 \ln(x^2+2) + C}$

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2 years ago