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4 years ago

7

Simplify. -9x² - 2y³ + 2x² - 2y³ Thank you!

2 answers:

erastovalidia [21]4 years ago

6 0

-7x^2 - 4y^3. Hopefully this helped! :)

damaskus [11]4 years ago

3 0

Answer:
<span>
</span><span><span><span>−<span>9<span>x^2</span></span></span>−<span>2<span>y^3</span></span></span>+<span>2<span>x^2</span></span></span>−<span>2<span>y^<span>3
</span></span></span>
=<span><span><span><span><span><span>−<span>9<span>x^2</span></span></span>+</span>−<span>2<span>y^3</span></span></span>+<span>2<span>x^2</span></span></span>+</span>−<span>2<span>y^<span>3</span></span></span></span><span>

Work:
</span><span>
</span>=−9x^2+−2y^3+2x^2+−2y^3

=<span><span>(<span><span>−<span>2y^3</span></span>+<span>−<span>2y^3</span></span></span>)</span>+<span>(<span><span>−<span>9x^2</span></span>+<span>2x^2</span></span><span>)
</span></span></span>
<span>=<span><span>−<span>4y^3</span></span>+<span>−<span>7x^2</span></span></span></span>

<span>

</span><span>
</span>

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