Question

Solve the equation by completing the square. Round to the nearest hundredth if necessary.
x^2+3x=25

3.65, –6.65
25.75, –28.75
4.77, 5.22
3.72, –6.72

Answer 1

http://www.geteasysolution.com/x%5E2+3x=25

Answer 2

Since the x^2 term has coefficient 1, start by taking half of the x-term coefficient and squaring it. What do you get?