find the value of a if x+2 is a factor4x^4+2x^3+8x+5a
Answers
Answered by
1
Answer:
a=6.4
Step-by-step explanation:
x+2 ÷ 4x^4 +2x³+8x+5a = 4x³-6x²+12x-16
with the last part of division being 5a=-32
a = -32÷5
a = -6.4
Answered by
1
Answer:
x+2=0
x=-2
4(-2^4)+2(-2^3)+8(-2)+5a
64-16-16+5a
64-32+5a
32+5a
5a=-32
a=-32\5
Similar questions