Question

×-2is the factor of ×square+3a×-2a then a=​

Answer 1

Step-by-step explanation:

Let P(x)=x2+3ax−2a

Given,  (x−2) is a factor of P(x)

x−2=0

x=2

∴P(2)=0

⇒22+3a(2)−2a=0

⇒4+4a=0

⇒a=−1

MARK AS BRAINLY

Answer 2

Answer:

Let P(x)=x

2

+3ax−2a

Given, (x−2) is a factor of P(x)

x−2=0

x=2

∴P(2)=0

⇒2

2

+3a(2)−2a=0

⇒4+4a=0

⇒a=−1