Assuming that the 2 in "5x2" is a power (5x2), then no, this is not a linear equation. It is a parabolic equation.
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X= (3/5 , -2)
The discriminant is 385.
Yes
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
Sure. It requires only the most basic algebraic manipulation of equalities.x2 + 6 = -4x2 + 2Add 4x2 to each side:5x2 + 6 = 2Subtract 2 from each side:5x2 + 4 = 0ax2 + bx + c = 0a = 5b = 0c = 4