factorise the above question
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Here's your answer
Step-by-step explanation:
Use this formula: a^2 - b^2 = (a + b)(a - b), called difference of squares
x^4 - (x - y)^4
= (x^2 + (x - y)^2)(x^2 - (x - y)^2)
= (x^2 + (x - y)^2)(x + (x - y))(x - (x - y))
= (x^2 + x^2 - 2xy + y^2)(2x - y)(-y)
= (2x^2 - 2xy + y^2)(y - 2x)(y)
Hope this helps
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