3x2 + 2x = 3
3x2 + 2x -3 = 3 - 3 = 0
Delta = (2 x 2) - 4 * 3 * -3 = 40
x = (-2 + sqrt(40)) / (2 * 3) or x = (-2 - sqrt(40)) / (2 * 3)
x = (-1 + sqrt(10))/3 or x = (-1 - sqrt(10))/3
63828
Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
It is a quadratic equation.
x2 + x2 = 2x2 2x^2
It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.
63828
Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
It is a quadratic equation.
x2 + x2 = 2x2 2x^2
Yes.
2x2 + x2 = 3x2
(2x-4)(x-1) = 0
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5
X equals 2 :)
3x(2x + 1)