harrymc10 harrymc10

18-06-2020
Mathematics

contestada

Expand and simplify
(2x + 3)(4x + 5) - 8x(x² – 2)

Respuesta :

gilbertazavedo72 gilbertazavedo72

18-06-2020

Answer:

-8x^3 + 8x^2 + 38x + 15

Step-by-step explanation:

(2x + 3)(4x + 5) - 8x(x² – 2)

8x^2 + 10x + 12x + 15 - 8x^3 + 16x

8x^2 + 38x + 15 - 8x^3

-8x^3 + 8x^2 + 38x + 15

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