If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2.5x2 + -2.8x = 0.4 Reorder the terms: -2.8x + 2.5x2 = 0.4 Solving -2.8x + 2.5x2 = 0.4 Solving for variable 'x'. Reorder the terms: -0.4 + -2.8x + 2.5x2 = 0.4 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 -0.4 + -2.8x + 2.5x2 = 0.0 Begin completing the square. Divide all terms by 2.5 the coefficient of the squared term: Divide each side by '2.5'. -0.16 + -1.12x + x2 = 0 Move the constant term to the right: Add '0.16' to each side of the equation. -0.16 + -1.12x + 0.16 + x2 = 0 + 0.16 Reorder the terms: -0.16 + 0.16 + -1.12x + x2 = 0 + 0.16 Combine like terms: -0.16 + 0.16 = 0.00 0.00 + -1.12x + x2 = 0 + 0.16 -1.12x + x2 = 0 + 0.16 Combine like terms: 0 + 0.16 = 0.16 -1.12x + x2 = 0.16 The x term is -1.12x. Take half its coefficient (-0.56). Square it (0.3136) and add it to both sides. Add '0.3136' to each side of the equation. -1.12x + 0.3136 + x2 = 0.16 + 0.3136 Reorder the terms: 0.3136 + -1.12x + x2 = 0.16 + 0.3136 Combine like terms: 0.16 + 0.3136 = 0.4736 0.3136 + -1.12x + x2 = 0.4736 Factor a perfect square on the left side: (x + -0.56)(x + -0.56) = 0.4736 Calculate the square root of the right side: 0.688186021 Break this problem into two subproblems by setting (x + -0.56) equal to 0.688186021 and -0.688186021.Subproblem 1
x + -0.56 = 0.688186021 Simplifying x + -0.56 = 0.688186021 Reorder the terms: -0.56 + x = 0.688186021 Solving -0.56 + x = 0.688186021 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.56' to each side of the equation. -0.56 + 0.56 + x = 0.688186021 + 0.56 Combine like terms: -0.56 + 0.56 = 0.00 0.00 + x = 0.688186021 + 0.56 x = 0.688186021 + 0.56 Combine like terms: 0.688186021 + 0.56 = 1.248186021 x = 1.248186021 Simplifying x = 1.248186021Subproblem 2
x + -0.56 = -0.688186021 Simplifying x + -0.56 = -0.688186021 Reorder the terms: -0.56 + x = -0.688186021 Solving -0.56 + x = -0.688186021 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.56' to each side of the equation. -0.56 + 0.56 + x = -0.688186021 + 0.56 Combine like terms: -0.56 + 0.56 = 0.00 0.00 + x = -0.688186021 + 0.56 x = -0.688186021 + 0.56 Combine like terms: -0.688186021 + 0.56 = -0.128186021 x = -0.128186021 Simplifying x = -0.128186021Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.248186021, -0.128186021}
| 2w=4.88 | | 4s-9t=-4 | | 2x+9x-x=12-3x+21 | | 3s+3t=10 | | 18+y=c | | -7-y=-13 | | 5a^2c^3(3ac+2c+5a)= | | 5(x+2)+2(x+7)= | | 2x^2+x-90=0 | | 512=x^3/2 | | 7x^2+3x+3y-7y^2=0 | | 12x3/10= | | -3x^2(4x^2+6x-8)= | | (-1/4)-5 | | 14x-34=180 | | -63x^3-7x^2=0 | | 39+9y=57 | | 25x^2-35x+12=0 | | 3.7+m=-3.7 | | 8p-5p+3=3p+p | | 3(1+5m)=123 | | 10x=700 | | (27•64)^2/3 | | 77=5x+2 | | 63+8y=39 | | -13-5x+2x+2x=2x+2 | | 24a^2-20a=0 | | b^2=15+14b | | 3(x-3)=24 | | 3a+4=a+6 | | 11x+43=0 | | 7+7x=28 |