If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x2 + 7x = 8 Reorder the terms: 7x + -1x2 = 8 Solving 7x + -1x2 = 8 Solving for variable 'x'. Reorder the terms: -8 + 7x + -1x2 = 8 + -8 Combine like terms: 8 + -8 = 0 -8 + 7x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 8 + -7x + x2 = 0 Move the constant term to the right: Add '-8' to each side of the equation. 8 + -7x + -8 + x2 = 0 + -8 Reorder the terms: 8 + -8 + -7x + x2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7x + x2 = 0 + -8 -7x + x2 = 0 + -8 Combine like terms: 0 + -8 = -8 -7x + x2 = -8 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = -8 + 12.25 Reorder the terms: 12.25 + -7x + x2 = -8 + 12.25 Combine like terms: -8 + 12.25 = 4.25 12.25 + -7x + x2 = 4.25 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = 4.25 Calculate the square root of the right side: 2.061552813 Break this problem into two subproblems by setting (x + -3.5) equal to 2.061552813 and -2.061552813.Subproblem 1
x + -3.5 = 2.061552813 Simplifying x + -3.5 = 2.061552813 Reorder the terms: -3.5 + x = 2.061552813 Solving -3.5 + x = 2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 2.061552813 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 2.061552813 + 3.5 x = 2.061552813 + 3.5 Combine like terms: 2.061552813 + 3.5 = 5.561552813 x = 5.561552813 Simplifying x = 5.561552813Subproblem 2
x + -3.5 = -2.061552813 Simplifying x + -3.5 = -2.061552813 Reorder the terms: -3.5 + x = -2.061552813 Solving -3.5 + x = -2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -2.061552813 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -2.061552813 + 3.5 x = -2.061552813 + 3.5 Combine like terms: -2.061552813 + 3.5 = 1.438447187 x = 1.438447187 Simplifying x = 1.438447187Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.561552813, 1.438447187}
| y=2x^3-8x^2+18x-72 | | 40+d=2d+30 | | t/=12.6 | | 9=2n-21 | | -68=-5y-13 | | y=15x-4 | | 2/8=-3 | | 11=7x-10 | | 5(x+4)=13x-32 | | 5d+4d+3d-8=3d | | 2n-(8+2n)=6(3n-4) | | -14x+-7y=-9 | | 32=6m+14 | | 24x+16y=-25 | | (x+7)*5=((x+25)+7) | | 3y-3+y=1 | | 5(10k+1)+2(2+8k)=66k+9 | | -14x+-7=-9 | | 5x+12=7x-12 | | 2m-5=8 | | 8k-5(-5k+3)=33k-15 | | 2(y+1)-(y-5)=4(y-2)-3(y-5) | | 1x+6=7+.2x | | 3D+5c=145 | | 2x^3=1 | | 8k-5(-5k+3)=33k+15 | | x-60y=-30 | | 8.5=2(3.14)r | | 2(9s+9)-9s=3(3s+6)-21 | | X-6=3x+1 | | (5a+4)(3a+7)= | | 6(7-3y)+6(y+1)=-12y-48 |