Combine and write in standard form. 2x (3x2 + 8x - 4) - 3 (2x2 + x - 5)

Question

Mathematics

Haleigh Johns

15 June, 10:55

Combine and write in standard form. 2x (3x2 + 8x - 4) - 3 (2x2 + x - 5)

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Answers (1)

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Schmidt · Answer 1

6x^3 + 10x^2 - 11x + 15

Step-by-step explanation:

2x (3x2 + 8x - 4) - 3 (2x2 + x - 5)

Distribute

6x^3 + 16x^2-8x - 6x^2 - 3x+15

Combine like terms

6x^3 + 16x^2 - 6x^2 - 3x-8x+15

6x^3 + 10x^2 - 11x + 15

Standard form is from highest to lowest power

6x^3 + 10x^2 - 11x + 15