If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -5v2 + 39v + -40 = 0 Reorder the terms: -40 + 39v + -5v2 = 0 Solving -40 + 39v + -5v2 = 0 Solving for variable 'v'. Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. 8 + -7.8v + v2 = 0 Move the constant term to the right: Add '-8' to each side of the equation. 8 + -7.8v + -8 + v2 = 0 + -8 Reorder the terms: 8 + -8 + -7.8v + v2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7.8v + v2 = 0 + -8 -7.8v + v2 = 0 + -8 Combine like terms: 0 + -8 = -8 -7.8v + v2 = -8 The v term is -7.8v. Take half its coefficient (-3.9). Square it (15.21) and add it to both sides. Add '15.21' to each side of the equation. -7.8v + 15.21 + v2 = -8 + 15.21 Reorder the terms: 15.21 + -7.8v + v2 = -8 + 15.21 Combine like terms: -8 + 15.21 = 7.21 15.21 + -7.8v + v2 = 7.21 Factor a perfect square on the left side: (v + -3.9)(v + -3.9) = 7.21 Calculate the square root of the right side: 2.685144316 Break this problem into two subproblems by setting (v + -3.9) equal to 2.685144316 and -2.685144316.Subproblem 1
v + -3.9 = 2.685144316 Simplifying v + -3.9 = 2.685144316 Reorder the terms: -3.9 + v = 2.685144316 Solving -3.9 + v = 2.685144316 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.9' to each side of the equation. -3.9 + 3.9 + v = 2.685144316 + 3.9 Combine like terms: -3.9 + 3.9 = 0.0 0.0 + v = 2.685144316 + 3.9 v = 2.685144316 + 3.9 Combine like terms: 2.685144316 + 3.9 = 6.585144316 v = 6.585144316 Simplifying v = 6.585144316Subproblem 2
v + -3.9 = -2.685144316 Simplifying v + -3.9 = -2.685144316 Reorder the terms: -3.9 + v = -2.685144316 Solving -3.9 + v = -2.685144316 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.9' to each side of the equation. -3.9 + 3.9 + v = -2.685144316 + 3.9 Combine like terms: -3.9 + 3.9 = 0.0 0.0 + v = -2.685144316 + 3.9 v = -2.685144316 + 3.9 Combine like terms: -2.685144316 + 3.9 = 1.214855684 v = 1.214855684 Simplifying v = 1.214855684Solution
The solution to the problem is based on the solutions from the subproblems. v = {6.585144316, 1.214855684}
| -.3x+4.69=-.8+1.19 | | -4u^2+16u-15= | | 9[5+5(5-x)+2x]=15-2x | | Y=220-60 | | 3-1+1-4-5= | | x/6=11.4 | | -2v^2+v+15= | | 4+3p+p=0 | | -2v^2+2v+15= | | -2v^2+11v+15= | | 7-2(8y+3)=8-(5-6y) | | 54+5y-11=15y-13-2y | | 6(2x-3)=3(x-5) | | 8w^2-10w-33= | | 5(4-3x)=1-(13-x) | | -4(1+5k)-k=-19-6k | | 5(3x)=150 | | -8w^2+6w-13= | | 2x(8-3)=5x(7+9) | | -14+4x=6(2+5x) | | 4x=4y-4 | | 6m-11=2+9m+1 | | -39+4m=-5(-5m+2) | | =5-2(6+4m)+5m | | 7+5p=-8(-5+3p)-4p | | -8+4x=-8(6x+1) | | 4v^2+20v+21= | | 2(y+4)+5= | | -5(6+4b)+3b=-98 | | 2-3(y-2)= | | 5(7x-5)-5x=-85 | | 8v-5(6v-1)=137 |