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y = 3x + 2x^2 + k where k is any number
3x + 2 = -10 3x = -12 x = -4
Just replace x by 4 in the formula. 3(4) - 2 = 12-2 = 10.
The equation can be simplified to show a value of Y in terms of X. 3X + 2Y +2 = 4Y + 4 3X + 2 = 2Y + 4 3X -2 = 2Y and 2Y = 3X - 2 means that Y = (3/2 X) -1
It is a quadratic expression and can be factored into: (3x+1)(x+2)