Question

if X + a is a factor of 2 X square + 20 X + 5 x + 10 then find the value of a​

Answer 1

Answer:

x+a=0

x= -a

2x^2 +20x+5x+10

2(-a)^2+20(-a)+5(-a) +10

2a^2 -20a -5a+10

2a^2 -25a +10

than solve this equation

and find out value of a