Question
$5x \times 2x^2y \times (− 7y^3) \times 2x^3y^2 =$ ...............

Answer

$5x \times 2x^2y \times − 7y^3 \times 2x^3y^2 = 5 \times 2 \times − 7 \times 2 \times x^{1+2+3} \times y^{1+3+2} = − 140x^6y^6$​​​​​​​

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