(ax+by)^2 Using #160; (a+b)^2=a^2+2ab+b^2 =(ax)^2+2(ax)(by)+(by)^2 =a^2+x^2+2abxy+b^2y^2 ...

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Division of a Polynomial by a Polynomial

Expand :- ax...

Question

Expand :- $(a x + b y)^{2}$

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Solution

$(a x + b y)^{2} U s i n g (a + b)^{2} = a^{2} + 2 a b + b^{2} = (a x)^{2} + 2 (a x) (b y) + (b y)^{2} = a^{2} + x^{2} + 2 a b x y + b^{2} y^{2}$

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Factorise :

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