Question

(x+3) (4x²-7) = ? how to solve

Answer 1

4x^3-7x+12x^2-21 is the answer for your question

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Answer 2

answer
$x(4x {}^{2} - 7) + 3(4x {}^{2} - 7) \\ 4x {}^3 - 7x + 12x {}^{2} - 21$