First you should combine equal terms. For example, 2x2 and -4x2 can be combined as -2x2. Then you can use the quadratic formula.
Additonal Answer:-
2x2+5x+3-4x2+22 = 0
Collect like terms: -2x2+5x+25 = 0
Divide al terms by -1: 2x2-5x-25 = 0
Factorise: (2x+5)(x-5) = 0
Solutions are: x = -5/2 or x = 5
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The discriminant b2-4ac is -23
104
By factoring I get x-3 divided by x+3
Your question does not make sense. It would probably be interpreted as a + = ++a ---a
The solutions are: x = 4, y = 2 and x = -4, y = -2
It is a quadratic equation and its solutions are: x = 4 or x = -9
2
All the time
78 minus78
79, -79
Quadratic formula gives roots as 1.53 and 10.47 (to nearest hundredth.)
If the 64 has a minus sign, then the solution is x = +/-5 Simplifying gives 4x squared = 100 ie x squared = 25...
x = -½
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The centre is (-5, 3)
X=1