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.
Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.
It is a quadratic equation.
x2 + x2 = 2x2 2x^2
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
2x2 + x2 = 3x2
(2x-4)(x-1) = 0
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5
X equals 2 :)
use the calculator
3x(2x + 1)
x = the square root of -2
3x2 + 2x - 8 = 0 is a quadratic equation.
This expression factors as x -1 quantity squared.
2 x cosine squared x -1 which also equals cos (2x)
It equals to the equation of a straight line.
They intersect at the point of: (-3/2, 11/4)
it equals 13X.
As written, that's 4x squared = -21 and x equals the square root of -21/4. But if you meant that to be 12x, it factors out nicely to (2x + 3)(2x + 3) and x would equal -3/2
No, x + x equals 2x. x times x equals x2. (x times x equals x squared.)
2x2 + 2x = 2x(x+1)