find the value of a, if (x+a) is a factor of x³ +ax² -2x+a+4
Answers
Answered by
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
Similar questions
Math,
2 months ago
Science,
2 months ago
English,
4 months ago
Social Sciences,
4 months ago
Social Sciences,
10 months ago