Question

factorise a2+b2-2(ab-ac+bc)

Answer 1

Answer:

Step-by-step explanation:

a²+b²-2(ab-ac+bc )

a² + b² -2ab + 2ac -2bc                         (open the bracket by )

(a-b)²-2c(a-b)                                        [  a²+b²-2ab = (a-b)²  ]

(a-b)(a-b-2c)                                     [taking a-b as common from both terms ]

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