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(a-b) x+(a+b)y=a2-2ab-b2(a+b)(x+y)=a2+b2

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(a-b) x+(a+b)y=a2-2ab-b2(a+b)(x+y)=a2+b2

Posted by Namitha Namitha 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 4 months ago

Given that (a-b) x + (a + b)y = a2 - 2ab - b2 -------------(1)

(a+b) x+ (a+b)y = a2 + b2 -------------(2)

Substracting (2) from (1) we get

-2bx = -2ab

=2b2 x = a + b

Subsitute x in equation (2) we get y = - 2ab / ( a + b).

1Thank You

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