Identify the values a, b, and c is the first step in using the quadratic formula to find the solution(s) to a quadratic equation. What are the values a, b, and c in the following quadratic equation? 18=-9x+7x2

The values are a = 7, b = -9, c = -18.

Step-by-step explanation:

The given quadratic equation is

The general form of the quadratic equation is

where,

Now, you have to modify the given quadratic equation similar to the general form of quadratic equation.

So, bring the constant term 18 to the left side of the equation for equating it to zero.

⇒

Compare the above equation with general form

⇒ a = 7

⇒ b = -9

⇒ c = -18

Therefore, the values of a, b, and c are 7, -9 and -18.

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expression #3 is not equivalent. the others are.