Question

(ax+by)²+(bx-ay)² Factorise​

Answer 1

$(ax + by) ^{2} + (bx - ay) ^{2} \\ \\ {a}^{2} {x}^{2} + 2abxy + {b}^{2} {y}^{2} + {b}^{2} {y}^{2} - 2abxy + {a}^{2} {y}^{2} \\ \\ {a}^{2} {x}^{2} + {b}^{2} {y}^{2} + {b}^{2 }{x}^{2} } + {a}^{2} {y}^{2}$

$\huge \: thank \: you$

Answer 2

(ax+by)²+(bx-ay)²

(ax)²+2axby+(by)²+(bx)²-2bxay+(ay)²    {Cancel +2axby and -2bxay}

(ax)²+(by)²+(bx)²+(ay)²

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