Question

Which of the following is the correct first step to solve 5x^2 - 20x = -15 by completing the square? 1. Add 100 to both sides. 2. Divide all terms by 5. 3. Divide all terms by -5. 4. Add 15 to both sides.

Answer 1

Answer:

3.  Divide all terms by 5

Step-by-step explanation:

given any quadratic equation ($5x^2 - 20x = -15$)

the steps to follow accordingly are

1. make the coefficient of the $x^2$ term to be 1 (divide all terms by the coefficient of $x^2$)
2. Add 15 to both sides.
3. Solve the completed squares.