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Colt1911 [192]
3 years ago
13

Express the product of 2x^2+6x-8 and x+3 in standard form

Mathematics
1 answer:
Radda [10]3 years ago
7 0
The answer is  2x³ + 12x² + 10x - 24

(2x² + 6x - 8)(x + 3) = x(2x² + 6x - 8) + 3(2x² + 6x - 8) =
                                = 2x³ + 6x² - 8x + 6x² + 18x - 24 =
                                = 2x³ + (6x² + 6x²) + (-8x + 18x) - 24 =
                                = 2x³ + 12x² + 10x - 24
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