Question

Multiply :
(i) (4x2 + 3x - 5) by (2x + 3)​

Answer 1

Step-by-step explanation:

2x+3(4x²+3x-5)

2x(4x²+3x-5)+3(4x²+3x-5)

8x³+6x²-10x+12x²+9x-15

8x³+18x²-x-15

Answer 2

$\red{ Product \:of \: (4x^{2}+3x-5)(2x+3) }$

$= 4x^{2}(2x+3)+3x(2x+3)-5(2x+3) \\= 8x^{3}+12x^{2}+6x^{2}+9x-10x-15\\= 8x^{3}+18x^{2}-x-15$

Therefore.,

$\red{ Product \:of \: (4x^{2}+3x-5)(2x+3) }$

$\green {= 8x^{3}+18x^{2}-x-15}$

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