Question

Multiply : ( 3x + 1) by ( 4x² + 2x -7)​

Answer 1

Step-by-step explanation:

$(3x + 1)(4x {}^{2} + 2x - 7) \\12x {}^{3} + 6x - 21x + 4x {}^{2} + 2x - 7 \\ 12x {}^{3} + 8x - 21x + 4x {}^{2} - 7 \\ 12x {}^{3} + 4x {}^{2} - 13x - 7$

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Answer 2

Answer:

12x³+10x²-5x-7

Step-by-step explanation:

(3x+1)×(4x²+2x-7)

3x×(4x²+2x-7)+1×(4x²+2x-7)

12x³+6x²-7x+4x²+2x-7

12x³+6x²+4x²-7x+2x-7

12x³+10x²-5x-7

Hope this helps you out

( x×x=x² )