If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x(x + 1) = 80 Reorder the terms: x(1 + x) = 80 (1 * x + x * x) = 80 (1x + x2) = 80 Solving 1x + x2 = 80 Solving for variable 'x'. Reorder the terms: -80 + 1x + x2 = 80 + -80 Combine like terms: 80 + -80 = 0 -80 + 1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '80' to each side of the equation. -80 + 1x + 80 + x2 = 0 + 80 Reorder the terms: -80 + 80 + 1x + x2 = 0 + 80 Combine like terms: -80 + 80 = 0 0 + 1x + x2 = 0 + 80 1x + x2 = 0 + 80 Combine like terms: 0 + 80 = 80 1x + x2 = 80 The x term is 1x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = 80 + 0.25 Reorder the terms: 0.25 + x + x2 = 80 + 0.25 Combine like terms: 80 + 0.25 = 80.25 0.25 + x + x2 = 80.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 80.25 Calculate the square root of the right side: 8.958236434 Break this problem into two subproblems by setting (x + 0.5) equal to 8.958236434 and -8.958236434.Subproblem 1
x + 0.5 = 8.958236434 Simplifying x + 0.5 = 8.958236434 Reorder the terms: 0.5 + x = 8.958236434 Solving 0.5 + x = 8.958236434 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 8.958236434 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 8.958236434 + -0.5 x = 8.958236434 + -0.5 Combine like terms: 8.958236434 + -0.5 = 8.458236434 x = 8.458236434 Simplifying x = 8.458236434Subproblem 2
x + 0.5 = -8.958236434 Simplifying x + 0.5 = -8.958236434 Reorder the terms: 0.5 + x = -8.958236434 Solving 0.5 + x = -8.958236434 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -8.958236434 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -8.958236434 + -0.5 x = -8.958236434 + -0.5 Combine like terms: -8.958236434 + -0.5 = -9.458236434 x = -9.458236434 Simplifying x = -9.458236434Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.458236434, -9.458236434}
| 7x+6-9x-3=0 | | (1/4x^(3/5))+(-2x^4/3) | | 3x=.5625 | | 3+2y-6=0 | | 7x-9x+6-3=0 | | 9x+2a=3a+8x | | 4x^2/9x^4 | | -2/7-1/2 | | 3^2-98/7^2*9-8 | | 5/2w-4=-7/3w-5/3 | | 6+5lnx=2 | | 2/11*1/3 | | 5f-7f+f=0 | | -2(-7k+4)=-13 | | f(x)=x^3+4x^2-7x-10 | | -2x+0=3 | | 6u^2-5u-1=0 | | 3/18=5/x | | 6m-7+2m+7=0 | | -2(q-29)=.5(4-89) | | (7x+6)(x^2-5x-7)= | | .16(x+4)=.6(x-5) | | -6(10-4f)=-(-12-8f) | | 14+0.3333=52 | | 12y-8+4y+y=0 | | 5(4+j)=45 | | 4+3t+t=60 | | 4-x^2-8x=0 | | -2/x^2 | | 4d-5=-9 | | 11(k-1)=7(k--2) | | 4w-5w+w=0 |