If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + -6x + 7 = 0 Reorder the terms: 7 + -6x + -2x2 = 0 Solving 7 + -6x + -2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -3.5 + 3x + x2 = 0 Move the constant term to the right: Add '3.5' to each side of the equation. -3.5 + 3x + 3.5 + x2 = 0 + 3.5 Reorder the terms: -3.5 + 3.5 + 3x + x2 = 0 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + 3x + x2 = 0 + 3.5 3x + x2 = 0 + 3.5 Combine like terms: 0 + 3.5 = 3.5 3x + x2 = 3.5 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = 3.5 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 3.5 + 2.25 Combine like terms: 3.5 + 2.25 = 5.75 2.25 + 3x + x2 = 5.75 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 5.75 Calculate the square root of the right side: 2.397915762 Break this problem into two subproblems by setting (x + 1.5) equal to 2.397915762 and -2.397915762.Subproblem 1
x + 1.5 = 2.397915762 Simplifying x + 1.5 = 2.397915762 Reorder the terms: 1.5 + x = 2.397915762 Solving 1.5 + x = 2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 2.397915762 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.397915762 + -1.5 x = 2.397915762 + -1.5 Combine like terms: 2.397915762 + -1.5 = 0.897915762 x = 0.897915762 Simplifying x = 0.897915762Subproblem 2
x + 1.5 = -2.397915762 Simplifying x + 1.5 = -2.397915762 Reorder the terms: 1.5 + x = -2.397915762 Solving 1.5 + x = -2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -2.397915762 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.397915762 + -1.5 x = -2.397915762 + -1.5 Combine like terms: -2.397915762 + -1.5 = -3.897915762 x = -3.897915762 Simplifying x = -3.897915762Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.897915762, -3.897915762}
| 193.0472=2*3.14*r*7.7+2*3.14*r^2 | | 3(1+5x)=-81 | | 5y+7=172 | | (-2)-1/2= | | -(5n-5)-3n=1-(n-4) | | 16899.48=2*3.14*(20.7*20.7)+2*3.14*20.7*h | | 3(4c-3)-19=8x-4 | | 16899.48=2*3.14*(20.7*20.7)+2*3.14*20.7 | | 2x+y=1000 | | -5f+2=-4f+8 | | 15+3x=7x+3 | | 1.5n-1.5=6n+0.75 | | -7-7(2m+4)=7(8m-5) | | 0=4y-2y | | 8n=8(3n+3)+8n | | 1.6+(-1.7)= | | (8x^2)(5x^3)= | | 39-8x=-3(5x+2)+3 | | (6x+5)=(4x+13) | | 12/14=d/48 | | 1.48g-8=0.14 | | (2x^5)(9X^3)= | | .5x+7=22 | | -4(8x+6)-7x=38-8x | | (5y+6)=3(2y-2) | | 6.1=9.3-0.8x | | -3.5n-24=-17 | | 14/21.2=n15 | | -13-4m=1-6m | | 42.83=9g+3.59 | | 2y-(-8x)=10 | | -5x=-3x-24 |