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Earn +20 ptsQ: X2 plus 3xy - 18y2 equals?
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10x2- 36y2 equals 100 isolate x2?
x2 = 18y2/5 + 10 Or if you want to isolate x: x = ± √(18y2/5 + 10)
What is a factor of x3 plus 27y3?
x3+27y3 = (x+3y) · (x2-3xy+9y2)
X2 plus 6x plus 8 equals?
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)
What is X2 plus 10x plus 21 equals?
x2 + 10x + 21 = (x + 3)(x + 7)
X2 plus 3x plus 10 equals 0?
-2
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