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Q: How do you solve x squared plus 55 -2x equals 90?

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(x - 3)(x + 5)

2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9

63828

y= -2x

2x+a=p 2x=p-a x=.5p-.5a

Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.

Add the x's squared together to get 2x^2+x. You cannot add anymore so the answer is 2x^2+x

3

It is a quadratic equation.

The solution comprises every point on a parabola which is symmetric about the y axis and has its apex at (0,1).

It cannot be solved because the discriminant of the quadratic equation is less than zero

Yes.

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