G(X) =
Check whether (x+3)³=x³-8 is a quadratic eqation
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Answer:
Yes, it is
Step-by-step explanation:
(x+3)³ = x³-8
x³+3³+3.3.x(x+3) = x³-8 ...... [Using the identity (a+b)³=a³+b³+3ab(a+b) ]
x³+27+9x² + 27x = x³-8 ...... (Cancelling x³ from both the sides)
9x² + 27x + 27 = -8
9x² + 27x + 35 = 0
which is a quadratic equation
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