Which of the following is not a quadratic polynomial? A x2+5x+6 B x2-5x+6 C 1+(x2-2x) D (x-2)(x+2)-(x2+5x)
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The perimeter of a triangle is 6x²+ 8x and the measure of two side is -5-3x + 5x² and 9 + 3x + 12x² . What will be the measure of the third side ?
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