If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + -1x = 7 Reorder the terms: -1x + 7x2 = 7 Solving -1x + 7x2 = 7 Solving for variable 'x'. Reorder the terms: -7 + -1x + 7x2 = 7 + -7 Combine like terms: 7 + -7 = 0 -7 + -1x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1 + -0.1428571429x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -0.1428571429x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -0.1428571429x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -0.1428571429x + x2 = 0 + 1 -0.1428571429x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -0.1428571429x + x2 = 1 The x term is -0.1428571429x. Take half its coefficient (-0.07142857145). Square it (0.005102040819) and add it to both sides. Add '0.005102040819' to each side of the equation. -0.1428571429x + 0.005102040819 + x2 = 1 + 0.005102040819 Reorder the terms: 0.005102040819 + -0.1428571429x + x2 = 1 + 0.005102040819 Combine like terms: 1 + 0.005102040819 = 1.005102040819 0.005102040819 + -0.1428571429x + x2 = 1.005102040819 Factor a perfect square on the left side: (x + -0.07142857145)(x + -0.07142857145) = 1.005102040819 Calculate the square root of the right side: 1.002547775 Break this problem into two subproblems by setting (x + -0.07142857145) equal to 1.002547775 and -1.002547775.Subproblem 1
x + -0.07142857145 = 1.002547775 Simplifying x + -0.07142857145 = 1.002547775 Reorder the terms: -0.07142857145 + x = 1.002547775 Solving -0.07142857145 + x = 1.002547775 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07142857145' to each side of the equation. -0.07142857145 + 0.07142857145 + x = 1.002547775 + 0.07142857145 Combine like terms: -0.07142857145 + 0.07142857145 = 0.00000000000 0.00000000000 + x = 1.002547775 + 0.07142857145 x = 1.002547775 + 0.07142857145 Combine like terms: 1.002547775 + 0.07142857145 = 1.07397634645 x = 1.07397634645 Simplifying x = 1.07397634645Subproblem 2
x + -0.07142857145 = -1.002547775 Simplifying x + -0.07142857145 = -1.002547775 Reorder the terms: -0.07142857145 + x = -1.002547775 Solving -0.07142857145 + x = -1.002547775 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07142857145' to each side of the equation. -0.07142857145 + 0.07142857145 + x = -1.002547775 + 0.07142857145 Combine like terms: -0.07142857145 + 0.07142857145 = 0.00000000000 0.00000000000 + x = -1.002547775 + 0.07142857145 x = -1.002547775 + 0.07142857145 Combine like terms: -1.002547775 + 0.07142857145 = -0.93111920355 x = -0.93111920355 Simplifying x = -0.93111920355Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.07397634645, -0.93111920355}
| x^2-21x+69=0 | | x^2+10x+87=0 | | 6(7-10x)+3(3-15x)=366 | | 15b^2+25b-40= | | -0.66666666666667x=0.83333333333333 | | -21x^2+95x+6=0 | | 9y+2(6y-5)=53 | | 2x+3c+x+c= | | r(2)-7r+10=0 | | 5x^2-18xy-8y^2= | | (3x)+(x+8)=180 | | 9y+9(14y+2)=288 | | f(x)=6x^2+13x+6 | | 2(x-1)=x-4 | | -8x+5y=7 | | x(2)-x=0 | | 2x^2+3x-7=x^2+5x+39 | | 3(p+9)-12p=51 | | 6-6x+3x=-21 | | 11p=22 | | 5x+10+11x+2+58=360 | | 4x^2+5x=-12 | | 12(m+20)=16m | | x(2)+5x-14=0 | | 8w-30=5w-40 | | 4x^2=-12x-6 | | (x/4)=(x/5)+(7/4) | | 2y-1/21=3y-7/15 | | 10+x+60=90 | | 10=2(2x-1) | | -0.08y+0.10(800-y)=0.07y | | 3x/x+2-x/x-2+8/x^2-4 |