Question

a2-b2+c2-1+2b-2ac factorise the following

Answer 1

Answer:

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Answer 2

Answer:

(a-c)^2 (b-1)(1-b)

Step-by-step explanation:

a2-b2+c2-1+2b-2ac

a2+c2-2ac-b2+2b-1

(a-c)^2 -b2+b+b-1

(a-c)^2-b(b-1)+1(b-1)

(a-c)^2 (b-1)(-b+1)or(1-b)