Question

if X + 2 is a factor of x 5 - 4 a 2 x 3 + 2 X + 2A + 3 find a​

Answer 1

X5-4a2X3+2X+2a+3

=(-2a)5-4a2 (-2a)3+2(-2a)+2a+3 (AS X+2a IS A FACTOR OF THIS POLYNOMIAL; X+2a=0____ X=-2a)

= -32a^5 +32a^5 -4a +2a +3

= -2a +3.......................BY SIMPLIFYING

-2a+3=0

a=3/2

hope it's helpful dear ...