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Earn +20 ptsQ: What is the answer to x2 equals -9?
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Find the radius for a circle with the equation x2 plus y2 equals 9?
Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..
X2 8x 9 equals -7?
x=-1
Radius for a circle with the equation x2 plus y2 equals 9?
3 (which is the sqrt of 9)
Solve x2 - 4x - 9 equals 0 by completing the square?
x2 - 4x - 9 = 0 ∴ x2 - 4x = 9 ∴ x2 - 4x + 4 = 13 ∴ (x - 2)2 = 13 ∴ x - 2 = ±√13 ∴ x = 2 ± √13
What is X2 - 7x - 18 equals 0?
x2-7x-18 (x-9) (x+2) x=9 x=-2 X= either 9 or -2
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