prove that (x+2)³=x³-4
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Step-by-step explanation:
(x + 6x+ 12x +8)
= (x+2) = x® + 6x²+ 12x +8
= x- 4 6x²+ 12x + 12 = 0
∴ These equation has highest power 2 with non-zero coefficient 6.
∴(x + 2)°=x* - 4 is a quadratic equation
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