Solve the following system of linear equations for x and y :
ax +by = 2ab , bx +ay = a2+b2
please fast it's urgent
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Answer:
ax+bx+by+ay=2ab+a2+b2
(ax+ay)+(bx+by)=2ab+a2+b2+2ab
a(x+y)+b(x+y)=4ab+a2+b2
(a+b)(x+y)= 4ab +a2+b2
x+y=4ab +a2+b2-a+b
x+y= 4ab+(a+b)(a-b)(a-b)
x+y= 4ab+a+b
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