factorise c²-a²-b²-2ab
Answers
Answered by
6
Answer:
(c+a+b)(c-a-b)
Step-by-step explanation:
c^2-a^2-b^2-2ab
= c^2 - (a^2+b^2+2ab)
= c^2 -(a+b)^2
= (c+a+b)(c-a-b)
Answered by
7
Answer:
Step-by-step explanation:
c²-a²-b²-2ab
c²-(a²+b²+2ab)
c²-(a+b)²
(c+a+b)(c-a-b)
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