solve by factorisation
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siddhartharao77:
x = -1 and -b^2/a^2
that is right but HOW ??
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a^2 x^2 +(a^2 +b^2) x + b^2
= a^2 x^2 + a^2 x + b^2 x + b^2
= a^2x(x+1) + b^2(x+1)
= (a^2x + b^2) (x+1)
Means they are roots. Hence x+1=0 = x = - 1. And a^2x + b^2 = 0 Hence x = - b^2 / a^2. Hope it's helpful to u.
= a^2 x^2 + a^2 x + b^2 x + b^2
= a^2x(x+1) + b^2(x+1)
= (a^2x + b^2) (x+1)
Means they are roots. Hence x+1=0 = x = - 1. And a^2x + b^2 = 0 Hence x = - b^2 / a^2. Hope it's helpful to u.
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