Question

If (x + 2) is a factor of 4x4 + 2y3 – 3x2 + 8x + 5a, find the value of 'a'.​

Answer 1

Answer:

Step-by-step explanation:

x=-2

p(x)= 4x4+2y3-3x2+8x+5a

p(-2)= 4(-2)4+2(-2)2-3(-2)2+8(-2)+5a

4(16)-2(8)-3(4)-8(2)+5a=0

64-16-12-16=-5a

20=-5a

a=-4