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tensa zangetsu [6.8K]
3 years ago
12

8n^2-4(7m^3+5n^2) help

Mathematics
1 answer:
Rasek [7]3 years ago
7 0
Hello there!


8m² - 4(7m³ + 5n²)

You wanna start by using the distributive property

=8n² - (-4)(7m³) + (-4)(5n²)

= 8n² - 28m³ - 20n²

= -28m³ - 12m²
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How many hours must you run if you want to run 27 km at a rate of 9 km/h? (Apex)
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Answer:

3

Step-by-step explanation:

27 km

9 km every hour

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7 0
3 years ago
EASY PLZ HELP!<br> Solve for x. (Show your work)<br> 2x + 3 &gt; 5
m_a_m_a [10]

<u><em>Hi there! </em></u>

<u><em>Answer:</em></u>

<u><em>X>1</em></u>

<u><em>*The answer must have a positive sign and greater than symbol.*</em></u>

Step-by-step explanation:

First, you subtract by 3 from both sides of an equation.

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Then, you subtract by the numbers from left to right.

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You can also divide by 2 from both sides of an equation.

\frac{2x}{2}>\frac{2}{2}

Finally, you divide by the numbers from left to right.

2/2=1

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I hope this helps you!

Have a nice day! :)

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Thank you so much! :)

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8 0
3 years ago
Read 2 more answers
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ankoles [38]

Answer:

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3 0
3 years ago
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