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Earn +20 ptsQ: X2 plus 2x-4 equals 0
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What are the real roots of x5 - 2x4 - 24x3 equals 0?
x5 - 2x4 - 24x3 = 0 x3(x2 - 2x - 24) = 0 x3(x2 + 4x - 6x - 24) = 0 x3(x - 6)(x + 4) = 0 x = {-4, 0, 6}
X2 plus 12x plus 36 equals 0?
x2+12x+36=0 2x+12x+36=0 14x+36=0 14x=-36 x=-36/14 x=-2 4/7
X2 plus 3x - 18 equals 0?
x^2+3x-18=0 (x+6)(x-3)=0
How do you solve x2 81 equals 0?
x: x2 - 81 = 0
Solve for x - x2-9x plus 14 equals 0?
x - x2 - 9x + 14 = 0 ; whence, x2 + 8x = 14 , x2 + 8x + 16 = 30 , and x + 4 = ±√30 . Therefore, x = ±√30 - 4 .
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