Math, asked by thirupathiakhila, 4 months ago

find the value of a, if (x+a) is a factor of x³ +ax² -2x+a+4

Answers

Answered by senhaldas

2

x+ a =0

x=-a

(-a)^3+ a(-a)^2 + a +4= 0

-a^3 +a^3 +2a +4+ a=0

-2a+a= -4

-a=-4

a=4

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