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elena55 [62]
3 years ago
5

Whats the answer for (5x + 8)(4x² + 6x - 8)

Mathematics
1 answer:
mestny [16]3 years ago
4 0
(5x + 8)(4x^2 + 6x - 8)\\ \\ 5x(4x^2 + 6x - 8) + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 32x^2 + 48x - 64 \\ \\ 20x^3 + (30x^2 + 32x^2) + (-40x + 48x) - 64 \\ \\ 20x^3 + 62x^2 + 8x - 64 \\ \\

The final result is: 20x^3 + 62x^2 + 8x - 64.
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A.

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Not reasonable, Why did you put that as your answer?

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Which number line shows the solutions to 1/2 x -2 > 0
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Answer:

The top choice

Step-by-step explanation:

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4. In slope-intercept form, what is the equation of a line perpendicular toy - 2x + 7 that passes
Phoenix [80]

Answer:

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Step-by-step explanation:

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y - 2x + 7

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y = mx + c

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y = mx + c

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7 0
3 years ago
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irakobra [83]

Answer:

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