Factorise :  [ (p+q)2 - (a- b)2] +p +q - a+ b

  • 8

(p+q-(a-b)) (p+q+a-b) +p+q - a+b

(p+q-a+b)(p+q+a-b) + p+q-a+b

(p+q-a+b)2 (p+q+a-b)

(p+q-a+b)(p+q+a-b+1)

May be. I dont know the correct answer.

  • 2
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