Question

3. Factorise the following.
(a – b)^2 – (b-c)^2
who answer first get marked brainlist​

Answer 1

Step-by-step explanation:

${(a - b)}^{2} - {(b - c)}^{2}$

Using

${x}^{2} - {y}^{2} = (x + y)(x - y)$

$= (a - b + b - c)(a - b - b + c)$

$= (a - c)(a - 2b + c)$

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