Question

5. If x- 2 is a factor of x2+3ax-2a,
then the value of a is​

Answer 1

Answer:

x-2=0=> x =2

x²+3ax-2a= 0

4+6a-2a=0

4a= -4

a=-1

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Answer 2

x-2=0

x=2

x²+3ax-2a=0

(2)²+3a×2-2a=0

4+6a-2a=0

4a=-4

a=-4/4

a= -1