Question

product of this question​

Answer 1

Answer:

$4x^4 +20x^2 -171$

Step-by-step explanation:

1) Distribute

$2x^2(2x^2 + 19) -9(2x^2 + 19)$

2) Multiply

$(4x^4 + 38x^2) - (18x^2 +171)$

3) Combining Like Terms

$4x^4 + 38x^2 -18x^2 -171\\4x^4 +(38-18)x^2 - 171\\4x^4 + 20x^2 -171$

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