Simplify each algebraic expression by combing like terms 7x^2-5x+10x-8x^2

Mathematics

2 answers:

castortr0y [4]3 years ago

8 0

Answer: -x^2 + 15x

Step-by-step explanation:

dangina [55]3 years ago

5 0

You just add the 7x^2 with the -8x^2 which gives you -x^2. Then you add the 10x with the -5x and get 5x.

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A+2/a-5÷a+1/a2-8a+15

krok68 [10]

For $A+\frac{2}{a}-\frac{5}{a}+\frac{1}{a^2}-8a+15$

Combine the fractions $\frac{2}{a} - \frac{5}{a} \ \textgreater \ \mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c} \ \textgreater \ \frac{2-5}{a}$

$\mathrm{Subtract\:the\:numbers:}\:2-5=-3 \ \textgreater \ \frac{-3}{a}$

$\mathrm{Apply\:the\:fraction\:rule}:\ \frac{-a}{b}=-\frac{a}{b} \ \textgreater \ -\frac{3}{a}$

Therefore our final answer is $A-\frac{3}{a}+\frac{1}{a^2}-8a+15$

Hope this helps!

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3 years ago

6n2 - 5n2 + 7n2<br> simplify the expresion and show work

olchik [2.2K]

This is just combining like terms.....
6n2 - 5n2 + 7n2
n2 + 7n2
=8n2

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tigry1 [53]

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Step2247 [10]

Answer:

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Step-by-step explanation:

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