If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4x2 + 5 = -5x Reorder the terms: 5 + -4x2 = -5x Solving 5 + -4x2 = -5x Solving for variable 'x'. Reorder the terms: 5 + 5x + -4x2 = -5x + 5x Combine like terms: -5x + 5x = 0 5 + 5x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -1.25 + -1.25x + x2 = 0 Move the constant term to the right: Add '1.25' to each side of the equation. -1.25 + -1.25x + 1.25 + x2 = 0 + 1.25 Reorder the terms: -1.25 + 1.25 + -1.25x + x2 = 0 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + -1.25x + x2 = 0 + 1.25 -1.25x + x2 = 0 + 1.25 Combine like terms: 0 + 1.25 = 1.25 -1.25x + x2 = 1.25 The x term is -1.25x. Take half its coefficient (-0.625). Square it (0.390625) and add it to both sides. Add '0.390625' to each side of the equation. -1.25x + 0.390625 + x2 = 1.25 + 0.390625 Reorder the terms: 0.390625 + -1.25x + x2 = 1.25 + 0.390625 Combine like terms: 1.25 + 0.390625 = 1.640625 0.390625 + -1.25x + x2 = 1.640625 Factor a perfect square on the left side: (x + -0.625)(x + -0.625) = 1.640625 Calculate the square root of the right side: 1.280868846 Break this problem into two subproblems by setting (x + -0.625) equal to 1.280868846 and -1.280868846.Subproblem 1
x + -0.625 = 1.280868846 Simplifying x + -0.625 = 1.280868846 Reorder the terms: -0.625 + x = 1.280868846 Solving -0.625 + x = 1.280868846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = 1.280868846 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = 1.280868846 + 0.625 x = 1.280868846 + 0.625 Combine like terms: 1.280868846 + 0.625 = 1.905868846 x = 1.905868846 Simplifying x = 1.905868846Subproblem 2
x + -0.625 = -1.280868846 Simplifying x + -0.625 = -1.280868846 Reorder the terms: -0.625 + x = -1.280868846 Solving -0.625 + x = -1.280868846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = -1.280868846 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = -1.280868846 + 0.625 x = -1.280868846 + 0.625 Combine like terms: -1.280868846 + 0.625 = -0.655868846 x = -0.655868846 Simplifying x = -0.655868846Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.905868846, -0.655868846}
| 3x^4-9x^2-30x^2=0 | | 7(y-3)=2(3y+9)-39 | | 9x=0.55 | | 27-8s=2-3s | | 20x^2+9x-18=0 | | 2v^2+11v=138 | | 2x^2+7=-4x | | 3x^2=11x+21 | | 9x-5=-14 | | x+2x+3x=100 | | 2*ln(x-5)-ln(2x-13)=1 | | x+2x=100 | | ln(4-x)-2ln(x)=1 | | 2(-5)(-3)= | | 8x^2-5=0 | | ln(x)+ln(x-3)=ln(6x)-ln(x-2) | | 5-7+(-8)-(-3)-2= | | -5-7+(-8)-(-3)-2= | | 8x-63=-4x+9 | | 196x^2=16 | | 256x^2=100 | | x^2-4x+4=81 | | x^2-14x+49=100 | | -7d=50+20d | | 649-x=243 | | x^2-18x+81=81 | | 6+2(8+6x)-9(3x+4)=0 | | -5x+6=-44 | | 2log[4]x=-log[4]16 | | x^2+20x+100=4 | | x+6(4)=x(2)+3x+5(2) | | 12-9x=70-23x |