Question

(4xsquare. + 3x − 5) × (2x + 3)

Answer 1

solving this equation we get

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

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