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X + 2 whole cube is equals to x cube minus 4 it is a quadratic equation or not |
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Answer» Answer: yes. Step-by-step EXPLANATION: (X + 2)³ = x³ - 4 x³ + 2³ + 3(x)(2)[x + 2] = x³ - 4 8 + 6x[x + 2] = -4 6x² + 12x = -12 6x² + 12x - 12 = 0 6(x² + 2x - 2) = 0 x² + 2x - 2 = 0 Clearly, the above eqn is in the form ax² + bx + C = 0, therefore, it is quadratic equation. Hope this helps you!!! |
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