Question

Multiply the polynomials (4x^2+x+7)(8x-5)

Answer 1

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➷Multiply everything together

(4x2+x+7)(8x−5)

=(4x2+x+7)(8x+−5)

=(4x2)(8x)+(4x2)(−5)+(x)(8x)+(x)(−5)+(7)(8x)+(7)(−5)

=32x3−20x2+8x2−5x+56x−35

=32x3−12x2+51x−35

Final answer:

32x3−12x2+51x−35

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Answer 2

Answer: SIMPLIFY TERMS === 32X^3-12X^2+51X=35

Explanation:

(4x2+x+7)(8x−5)

Expand (4x2+x+7)(8x−5)

by multiplying each term in the first expression by each term in the second expression.

4x2(8x)+4x2⋅−5+(x(8x)+x⋅−5)+(7(8x)+7⋅−5)

Simplify terms.

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32x3−12x2+51x−35