Answer:
2x^2 - 6x - 15 = 0
Explanation:
The standard form of a quadratic equation is ax^2 + bx + c = 0
We have 2x(x-3) = 15
To start, lets expand this out.
2x^2 - 6x = 15
Then, let's bring 15 to the other side.
2x^2 - 6x - 15 = 0
This is now in standard form with a = 2, b = -6, and c = -15
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