Question

Factorise
(a) ab (x^2+y^2) - xy (a^2+b^2)
(b) x^2 + 1/x^2 - 2 - 3x + 3/x

please answer...
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Answer 1

Answer:

Step-by-step explanation:

(a) ans=→ (ab)(x²+y²)-(xy)(a²+b²)

           → (abx²+aby²)-(xya²+xyb²)

           → (by-xa)(ay-xb)

(b) ans=→ x²+1/x² - 3x+3/x -2

            → [(x²)(x²)+1-(x²)(3x)+x*3-(x²)2] ÷ x²

            → [(x-1)(x+1)(x²-3x-1)] ÷ x²