X2 * 2X
= 2X3
======multiply coefficients and add exponents ( all variables have a 1 as implied exponent )
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Derivation of x2 or 2x is 2.
What do you want to convert it to? x2 + y2 = 2x If you want to solve for y: x2 + y2 = 2x ∴ y2 = 2x - x2 ∴ y = (2x - x2)1/2 If you want to solve for x: x2 + y2 = 2x ∴ x2 - 2x = -y2 ∴ x2 - 2x + 1 = 1 - y2 ∴ (x - 1)2 = 1 - y2 ∴ x - 1 = ±(1 - y2)1/2 ∴ x = 1 ± (1 - y2)1/2
2x = x2 + 4x - 3 x2 + 2x - 3 = 0 (x - 1)(x - 2) = 0
x3 - x2 + 2x = x*(x2 - x + 2) which cannot be factored further.
x2 + 2x - 15 = (x - 3)(x + 5)