Factorise using suitable groupings: (a) ax 2 +by 2 +bx 2 +ay 2 please!!!! give in today.acto
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ax^2+by^2+bx^2+ay^2
= ax^2+bx^2+ ay^2+by^2
=x^2(a+b) y^2 (a+b)
=(a+b) (x^2+y^2)
= ax^2+bx^2+ ay^2+by^2
=x^2(a+b) y^2 (a+b)
=(a+b) (x^2+y^2)
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