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Earn +20 ptsQ: X2 plus 20x plus 4 equals 0?
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What number is used to complete the square for the equation x2 equals 20x?
x2=20x 0 is an obvious solution if x is not 0, then divide both side by x, so x=20 so the solutions are 0 and 20
What is x2 plus 7x equals - 2x2 plus 6 in the form ax2 bx c equals 0?
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
X2 plus 3x plus 10 equals 0?
-2
Solution set of x2 plus 49 equals 0?
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
What is the square of x2 plus 12x plus 20 equals 0?
168
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