Choose the equation that best represents the general form of . x^2/2=7x ? a: - x^2 + 14x + 0 b: x^2 + 14x = 0 c: x^2 - 14x = 0 d: x^2 - 7x + 2 = 0

Starting with                                   x² / 2  =  7x

Multiplying both sides by 2:                 x²  =  14x

Subtract 14x from both sides:     x² - 14x  =  0     (which is answer 'c')

Answer 'a' is also algebraicly correct but, because the leading coefficient is negative, 'c' is preferred.

Note that a: isn't an equation (doesn't have "=").