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Earn +20 ptsQ: What are the solutions to the equation x2 equals 81?
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How do you solve x2 81 equals 0?
x: x2 - 81 = 0
How many real solutions are there for the equation x2 plus 3x plus 5 equals 0?
There are no real solutions because the discriminant of the quadratic equation is less than zero.
What is the discriminant for x2-4x-5 equals 0?
The discriminant is 36 which means the quadratic equation has two solutions which are 5 and -1
What are the solutions for the quadratic equation x2 minus 21x equals 72?
x2 - 21x = 72x2 - 21x - 72 = 0(x - 24) (x + 3) = 0x = 24x = -3
What quadratic equation has solutions of 5 and 7?
x2 - 12x + 35
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