Question

Subtract 3x² + 4x from the sum of 2x² + 7x and 3x³ +7​

Answer 1

$(2 {x}^{2} + 7x + 3 {x}^{3} + 7) - (3{x}^{2} + 4x)$

$2 {x}^{2} + 7x + 3 {x}^{3} + 7 - 3 {x}^{2} - 4x$

$3x + 3 {x}^{3} + 7 - {x}^{2}$

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