Which of the following is the standard form of the equation 5x2 - 20x = 15?
a. x2 - 4x = 3
b. x2 - 4x - 3 = 0
c.5x2 - 20x - 15 = 0

It is C. The first part is raised to the 2nd power. so it goes first since that is the highest. then the -20x because variables are understood to the power of 1, while normal numbers are understood to the power of 0. so the order is highest to lowest (2,1,0)

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