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26-10-2021
Mathematics

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Evaluate 5x2 + 2(4x - 7) – 8x for x = 3. Show your work.

Evaluate 5x2 24x 7 8x for x 3 Show your work class=

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26-10-2021

Answer:

31

Step-by-step explanation:

5x^2 + 2(4x - 7) - 8x =

5 * 3^2 + 2(4*3 -7) - 8*3 =

5 * 9 + 2(12-7) - 24 =

45 + 2 * 5 - 24 =

45 + 10 - 24 =

55 - 24 =

31

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