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Serhud [2]
2 years ago
12

Which of the following is the product of the rational expressions shown

Mathematics
1 answer:
Alexus [3.1K]2 years ago
6 0

Answer: x = 0; x=10

Step-by-step explanation:

\frac{x+2}{x-4} *\frac{3x}{x+4}\\ \\x+2(x+4) = x-4(3x)\\x^{2} +2x+ 4x + 8 = 3x^{2} -12x\\2x+4x+12x =3x^{2} - x^{2} \\20x= 2x^{2} \\10x = x^2\\x=0\\x=10

Hope this helps!

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Equations and inequalities
DerKrebs [107]
Inequalities and equations use similar steps to solve, but inequalities give a range of numbers that can represent the variable while an equation will give a direct answer.

Example:

4+5x=24

First you would subtract 4 or add the opposite of 4 from 24.

4+5x=24
+(-4) +(-4)
—————
5x=20

Then divide each side by 5 or multiply each side by the reciprocal of 5 to isolate the variable.

1/5*5x=20*1/5 (reciprocal)
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You would use the same steps in an inequality but end up with a different sign.
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Using the foil method, multiply the terms of the binomials below. Show your work in the blanks provided. Then, add any like term
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Answer:

5x^4+7x^3-6x^2

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Answer:

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