3 years ago

12x² + 2x² – 30x – 5

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

8 0

Step-by-step explanation:

$12 {x}^{2} + 2 {x}^{2} - 30x - 5 \\ = 14 {x}^{2} - 30x - 5$

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Simplify. –10 • 2 ÷ (–4) + 8 • 5 A. 25 B. 35 C. 45 D. 65

Vikki [24]

–10 • 2 ÷ (–4) + 8 • 5

10 • 2 = 20

8 • 5 = 40

–10 • 2 ÷ (–4) + 8 • 5 = – 20 ÷ (–4) + 40

The operation Divide ÷ has to be carried out first.

– 20 ÷ (–4) = -20/-4 = 5

– 20 ÷ (–4) + 40 = 5 + 40 = 45

Option C.

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3 years ago

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