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olya-2409 [2.1K]
3 years ago
9

Simplify: a(3+5a)-4(a2+5)

Mathematics
1 answer:
faust18 [17]3 years ago
6 0

Answer:

\displaystyle a( 3 + 5a) - 4(a^2 +5) = a^2 + 3a - 20

Step-by-step explanation:

We want to simplify the expression:

a( 3 + 5a) - 4(a^2 +5)

Distribute:

\displaystyle = (3a + 5a^2) + ( -4a^2 - 20)

Rearrange:

\displaystyle = (5a^2 - 4a^2) + (3a) + (-20)

Combine like terms:

\displaystyle = a^2 + 3a -20

In conclusion:

\displaystyle a( 3 + 5a) - 4(a^2 +5) = a^2 + 3a - 20

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Step-by-step explanation:

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3 years ago
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