Question

(2x+a) (a+b) + (2x-b) (x-a)​

Answer 1

Answer:

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Step-by-step explanation:

(2x+a) (a+b) + (2x-b) (x-a)

(X-A)×(X-B)+(X-B)×(X-C)+(X-C)×(X-A)=0

3×2-2AX-2BX-2CX+AB+BC+CA=0

sum of roots=-b/a

=2(A+B+C)/3

hope this helps you