If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying u2 + -28u = -15 Reorder the terms: -28u + u2 = -15 Solving -28u + u2 = -15 Solving for variable 'u'. Reorder the terms: 15 + -28u + u2 = -15 + 15 Combine like terms: -15 + 15 = 0 15 + -28u + u2 = 0 Begin completing the square. Move the constant term to the right: Add '-15' to each side of the equation. 15 + -28u + -15 + u2 = 0 + -15 Reorder the terms: 15 + -15 + -28u + u2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -28u + u2 = 0 + -15 -28u + u2 = 0 + -15 Combine like terms: 0 + -15 = -15 -28u + u2 = -15 The u term is -28u. Take half its coefficient (-14). Square it (196) and add it to both sides. Add '196' to each side of the equation. -28u + 196 + u2 = -15 + 196 Reorder the terms: 196 + -28u + u2 = -15 + 196 Combine like terms: -15 + 196 = 181 196 + -28u + u2 = 181 Factor a perfect square on the left side: (u + -14)(u + -14) = 181 Calculate the square root of the right side: 13.453624047 Break this problem into two subproblems by setting (u + -14) equal to 13.453624047 and -13.453624047.Subproblem 1
u + -14 = 13.453624047 Simplifying u + -14 = 13.453624047 Reorder the terms: -14 + u = 13.453624047 Solving -14 + u = 13.453624047 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + u = 13.453624047 + 14 Combine like terms: -14 + 14 = 0 0 + u = 13.453624047 + 14 u = 13.453624047 + 14 Combine like terms: 13.453624047 + 14 = 27.453624047 u = 27.453624047 Simplifying u = 27.453624047Subproblem 2
u + -14 = -13.453624047 Simplifying u + -14 = -13.453624047 Reorder the terms: -14 + u = -13.453624047 Solving -14 + u = -13.453624047 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + u = -13.453624047 + 14 Combine like terms: -14 + 14 = 0 0 + u = -13.453624047 + 14 u = -13.453624047 + 14 Combine like terms: -13.453624047 + 14 = 0.546375953 u = 0.546375953 Simplifying u = 0.546375953Solution
The solution to the problem is based on the solutions from the subproblems. u = {27.453624047, 0.546375953}
| 23.18+5.8= | | lnx^7-5lnx-2=0 | | y=3x^2+5x-300 | | y^2+2y-11=0 | | 2x(x-1)+3(x-1)=0 | | 28x^2+7x=0 | | 40.8/4 | | 3x-32+3x+2=180 | | s+50(6)=3s | | 2x^2+2y^2+4x-16y+26=26 | | t^2-4t=9 | | 4x+9+3x+3=180 | | j^2+6j=5 | | x+3.4=6.6 | | -12=6y+24 | | x^2+16x+37=0 | | f(x)=0.3(x^2-4x) | | 12x+2x-6y+2y-4x= | | 22=2t+2d | | 360.40-0.06(p)=p | | p^2+8p=25 | | 14-19= | | 360.40-0.06(360.40)=p | | -49-7b=-42 | | 22=2x+2y | | 8=b-1+8 | | q^2-10q-17=0 | | -2.6-11.2= | | -10+10r=80 | | -z+16z-15z+9z=-9 | | 3x-6+3x-6+2x+2+2x+2=142 | | 7x+14=42 |