Question

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

Answer 1

Answer: 2

Step-by-step explanation:

(x+a) is a factor,

=> f(-a)=0

2(-a)²+2(a)(-a)+5(-a)+10=0

2a²-2a²-5a+10=0

-5a+10=0

-5a= -10

a= -10/-5

a=2

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