Question

factorise_ a^2-(b-c)^2​

Answer 1

Answer:

a²-(b-c)²

Step-by-step explanation:

=> a²-(b²-2bc+c²)

=> a²-b²+c²-2bc

Answer 2

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)