If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = 40x2 + 80x + -99 Reorder the terms: 0 = -99 + 80x + 40x2 Solving 0 = -99 + 80x + 40x2 Solving for variable 'x'. Combine like terms: 0 + 99 = 99 99 + -80x + -40x2 = -99 + 80x + 40x2 + 99 + -80x + -40x2 Reorder the terms: 99 + -80x + -40x2 = -99 + 99 + 80x + -80x + 40x2 + -40x2 Combine like terms: -99 + 99 = 0 99 + -80x + -40x2 = 0 + 80x + -80x + 40x2 + -40x2 99 + -80x + -40x2 = 80x + -80x + 40x2 + -40x2 Combine like terms: 80x + -80x = 0 99 + -80x + -40x2 = 0 + 40x2 + -40x2 99 + -80x + -40x2 = 40x2 + -40x2 Combine like terms: 40x2 + -40x2 = 0 99 + -80x + -40x2 = 0 Begin completing the square. Divide all terms by -40 the coefficient of the squared term: Divide each side by '-40'. -2.475 + 2x + x2 = 0 Move the constant term to the right: Add '2.475' to each side of the equation. -2.475 + 2x + 2.475 + x2 = 0 + 2.475 Reorder the terms: -2.475 + 2.475 + 2x + x2 = 0 + 2.475 Combine like terms: -2.475 + 2.475 = 0.000 0.000 + 2x + x2 = 0 + 2.475 2x + x2 = 0 + 2.475 Combine like terms: 0 + 2.475 = 2.475 2x + x2 = 2.475 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 2.475 + 1 Reorder the terms: 1 + 2x + x2 = 2.475 + 1 Combine like terms: 2.475 + 1 = 3.475 1 + 2x + x2 = 3.475 Factor a perfect square on the left side: (x + 1)(x + 1) = 3.475 Calculate the square root of the right side: 1.864135188 Break this problem into two subproblems by setting (x + 1) equal to 1.864135188 and -1.864135188.Subproblem 1
x + 1 = 1.864135188 Simplifying x + 1 = 1.864135188 Reorder the terms: 1 + x = 1.864135188 Solving 1 + x = 1.864135188 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.864135188 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.864135188 + -1 x = 1.864135188 + -1 Combine like terms: 1.864135188 + -1 = 0.864135188 x = 0.864135188 Simplifying x = 0.864135188Subproblem 2
x + 1 = -1.864135188 Simplifying x + 1 = -1.864135188 Reorder the terms: 1 + x = -1.864135188 Solving 1 + x = -1.864135188 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.864135188 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.864135188 + -1 x = -1.864135188 + -1 Combine like terms: -1.864135188 + -1 = -2.864135188 x = -2.864135188 Simplifying x = -2.864135188Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.864135188, -2.864135188}
| x^2+2x-15=270 | | X^3+4x=423 | | P2-3p/4=3/4-p | | 36+x-36=54+36 | | X^3+4x=14 | | ax-1=bx+2 | | -1/4×-3/4= | | 0.3y+0.7y=-3 | | 5x+9=13x | | -7=13+m | | 2x+-2=-x+7 | | u(2)=x^2+3 | | 1200-40x=400+50x | | 23-5x=-44-7x | | y=425+0.75y-100 | | (5x-8)(5x+8)=36 | | 3x^2+3y^2+30x+24y+15=0 | | 2x(4x+9)= | | 9x+6=13x-10 | | 19x+17y=-5 | | 3x+4=-x+-6 | | 6⁴/6² | | 8/x-70=-12 | | 8/x-70-12 | | 3(2x+1)-5(x-2)=10 | | 3x^2+3y^2-6x+12y+60=0 | | 6(t+3)=2(t+23) | | -6x+-2=12 | | 80-2x=90 | | Ln(x)=-2x+4 | | y=0.75y+325 | | y=0.75+325 |