factorise_ a^2-(b-c)^2
Answers
Answered by
1
Answer:
a²-(b-c)²
Step-by-step explanation:
=> a²-(b²-2bc+c²)
=> a²-b²+c²-2bc
Answered by
1
Step-by-step explanation:
(a)^2 - (b-c)^2
let X = a Y = (b- c )
using X^2 - Y^2 = (X+Y) (X-Y)
(a)^2 - (b-c)^2 = { (a)+(b-c) } { (a)-(b-c) }
(a+b+c) (a-b+c)
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