If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1.8x2 + -9x + 45 = 0 Reorder the terms: 45 + -9x + -1.8x2 = 0 Solving 45 + -9x + -1.8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1.8 the coefficient of the squared term: Divide each side by '-1.8'. -25 + 5x + x2 = 0 Move the constant term to the right: Add '25' to each side of the equation. -25 + 5x + 25 + x2 = 0 + 25 Reorder the terms: -25 + 25 + 5x + x2 = 0 + 25 Combine like terms: -25 + 25 = 0 0 + 5x + x2 = 0 + 25 5x + x2 = 0 + 25 Combine like terms: 0 + 25 = 25 5x + x2 = 25 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = 25 + 6.25 Reorder the terms: 6.25 + 5x + x2 = 25 + 6.25 Combine like terms: 25 + 6.25 = 31.25 6.25 + 5x + x2 = 31.25 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 31.25 Calculate the square root of the right side: 5.590169944 Break this problem into two subproblems by setting (x + 2.5) equal to 5.590169944 and -5.590169944.Subproblem 1
x + 2.5 = 5.590169944 Simplifying x + 2.5 = 5.590169944 Reorder the terms: 2.5 + x = 5.590169944 Solving 2.5 + x = 5.590169944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 5.590169944 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 5.590169944 + -2.5 x = 5.590169944 + -2.5 Combine like terms: 5.590169944 + -2.5 = 3.090169944 x = 3.090169944 Simplifying x = 3.090169944Subproblem 2
x + 2.5 = -5.590169944 Simplifying x + 2.5 = -5.590169944 Reorder the terms: 2.5 + x = -5.590169944 Solving 2.5 + x = -5.590169944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -5.590169944 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -5.590169944 + -2.5 x = -5.590169944 + -2.5 Combine like terms: -5.590169944 + -2.5 = -8.090169944 x = -8.090169944 Simplifying x = -8.090169944Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.090169944, -8.090169944}
| P=4Q+16 | | 2p-10=-3+3p | | -2x+3(7x+15)=-50 | | 4x^2+3x+5= | | 10x+-16x-9x-6x+-15x=-18 | | 16x^2+36=-48 | | x/2-4=11 | | 2p-10=3+3p | | x=3.05+-1y | | 28x+56=10y | | 0.6y+0.8=0.1-0.1y | | (3x-8)(x-1)=0 | | x/4+6=12 | | x+y=3.05 | | 8x^2-3=2 | | -1.5x^2-7.5x+45.9=0 | | 2(3x+5)=25 | | 12.5=10-2.5x | | 2(x+3)+x=0 | | 2[3x-(4x-6)]=9(x-6) | | 10g+-16g-9g-6g+-15g=-18 | | w(w+6)=0 | | 2(x-1)+x=7 | | (7a+8)(a-8)=0 | | -24x+-18=-24+-18 | | 5(2j)+(2j-3)= | | 1/4q=10 | | 4x(2x-3)=5 | | 3(2x+4)=41 | | n=0.8t^4+6.29t^3-33.79t^2+144.7t | | 20.99-.085x=253.89 | | .35x^2+2.3x-6.2=0 |