If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + -8x + -9 = 0 Reorder the terms: -9 + -8x + 7x2 = 0 Solving -9 + -8x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.285714286 + -1.142857143x + x2 = 0 Move the constant term to the right: Add '1.285714286' to each side of the equation. -1.285714286 + -1.142857143x + 1.285714286 + x2 = 0 + 1.285714286 Reorder the terms: -1.285714286 + 1.285714286 + -1.142857143x + x2 = 0 + 1.285714286 Combine like terms: -1.285714286 + 1.285714286 = 0.000000000 0.000000000 + -1.142857143x + x2 = 0 + 1.285714286 -1.142857143x + x2 = 0 + 1.285714286 Combine like terms: 0 + 1.285714286 = 1.285714286 -1.142857143x + x2 = 1.285714286 The x term is -1.142857143x. Take half its coefficient (-0.5714285715). Square it (0.3265306123) and add it to both sides. Add '0.3265306123' to each side of the equation. -1.142857143x + 0.3265306123 + x2 = 1.285714286 + 0.3265306123 Reorder the terms: 0.3265306123 + -1.142857143x + x2 = 1.285714286 + 0.3265306123 Combine like terms: 1.285714286 + 0.3265306123 = 1.6122448983 0.3265306123 + -1.142857143x + x2 = 1.6122448983 Factor a perfect square on the left side: (x + -0.5714285715)(x + -0.5714285715) = 1.6122448983 Calculate the square root of the right side: 1.26974206 Break this problem into two subproblems by setting (x + -0.5714285715) equal to 1.26974206 and -1.26974206.Subproblem 1
x + -0.5714285715 = 1.26974206 Simplifying x + -0.5714285715 = 1.26974206 Reorder the terms: -0.5714285715 + x = 1.26974206 Solving -0.5714285715 + x = 1.26974206 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5714285715' to each side of the equation. -0.5714285715 + 0.5714285715 + x = 1.26974206 + 0.5714285715 Combine like terms: -0.5714285715 + 0.5714285715 = 0.0000000000 0.0000000000 + x = 1.26974206 + 0.5714285715 x = 1.26974206 + 0.5714285715 Combine like terms: 1.26974206 + 0.5714285715 = 1.8411706315 x = 1.8411706315 Simplifying x = 1.8411706315Subproblem 2
x + -0.5714285715 = -1.26974206 Simplifying x + -0.5714285715 = -1.26974206 Reorder the terms: -0.5714285715 + x = -1.26974206 Solving -0.5714285715 + x = -1.26974206 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5714285715' to each side of the equation. -0.5714285715 + 0.5714285715 + x = -1.26974206 + 0.5714285715 Combine like terms: -0.5714285715 + 0.5714285715 = 0.0000000000 0.0000000000 + x = -1.26974206 + 0.5714285715 x = -1.26974206 + 0.5714285715 Combine like terms: -1.26974206 + 0.5714285715 = -0.6983134885 x = -0.6983134885 Simplifying x = -0.6983134885Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.8411706315, -0.6983134885}
| (n-8*10)=30 | | 3(-2)-2y=6 | | 8x+36=180 | | (n-9)*3=24 | | x+7*180=x*200 | | x^2-7/2x=0 | | 112.5*h*10=225 | | 2(2x-5)+9=11 | | 5t-t-4=3t-5 | | 2x=x+19 | | -8(3x-4)+51x=8 | | 2x/x-2=x/x+1 | | 15-4x+3+6x=2+8 | | x^4+2x+1=40000 | | 54=-6(3+n) | | 3x+2+x-1=11 | | 110=5(2+b) | | 3c-10=c | | -53=-5+6k | | 1/24x=-6 | | 0=5(-9+v) | | 9-6x=-63 | | 5(x+2)=-50 | | 2(3x+1)=5 | | 5n+4=4 | | 2x+12x=96 | | 157-4x=41x+17 | | (-4)/x=2 | | -9.6/-9.1 | | 3k-13=26 | | 3x+11=89-7x | | 6x+6x+12=96 |