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2 years ago

If B = 3m - 5m2 +10 and A = -3 – m, find an expression that equals 2B + 3 A in standard form.

Mathematics

2 answers:

Mashutka [201]2 years ago

6 0

-5m2+5m+1 is the correct answer

Ghella [55]2 years ago

5 0

<h3>Answer: -10m^2 + 3m + 11</h3>

Work Shown:

2B + 3A

2(3m - 5m^2 + 10) + 3(-3 - m)

2(3m) + 2(-5m^2) + 2(10) + 3(-3) + 3(-m)

6m - 10m^2 + 20 - 9 - 3m

-10m^2 + 3m + 11

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