Question

X^3+ 3x^2 -1 divided by 1+x.

Answer 1

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Remainder---> (+1)

$x + 1 = 0\\ x = - 1 \\ f(x) = {x}^{3} + 3 {x}^{2} - 1 \\ f( - 1) = - 1 {}^{3} + 3( - 1) {}^{2} - 1 \\ f( - 1) = - 1 + 3 - 1 = + 1$

$quotient = {x}^{2} + 2x$

ANS....

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