Question

Multiply:(2x²-4x-5)by (x²+6x-7)

Answer 1

$\huge{\tt{ANSWER:-}}$

$(2 {x}^{2} - 4x - 5)( {x}^{2} + 6x - 7)$

$= 2 {x}^{4} + 12 {x}^{3} - 14 {x}^{2} - 4 {x}^{3} - 24 {x}^{2} + 28x - 5 {x}^{2} - 30x + 35$

$= 2 {x}^{4} +8 {x}^{3} - 43 {x}^{2} - 2x + 35$

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