If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -9x2 + 7x + 1 = 0 Reorder the terms: 1 + 7x + -9x2 = 0 Solving 1 + 7x + -9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -9 the coefficient of the squared term: Divide each side by '-9'. -0.1111111111 + -0.7777777778x + x2 = 0 Move the constant term to the right: Add '0.1111111111' to each side of the equation. -0.1111111111 + -0.7777777778x + 0.1111111111 + x2 = 0 + 0.1111111111 Reorder the terms: -0.1111111111 + 0.1111111111 + -0.7777777778x + x2 = 0 + 0.1111111111 Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000 0.0000000000 + -0.7777777778x + x2 = 0 + 0.1111111111 -0.7777777778x + x2 = 0 + 0.1111111111 Combine like terms: 0 + 0.1111111111 = 0.1111111111 -0.7777777778x + x2 = 0.1111111111 The x term is -0.7777777778x. Take half its coefficient (-0.3888888889). Square it (0.1512345679) and add it to both sides. Add '0.1512345679' to each side of the equation. -0.7777777778x + 0.1512345679 + x2 = 0.1111111111 + 0.1512345679 Reorder the terms: 0.1512345679 + -0.7777777778x + x2 = 0.1111111111 + 0.1512345679 Combine like terms: 0.1111111111 + 0.1512345679 = 0.262345679 0.1512345679 + -0.7777777778x + x2 = 0.262345679 Factor a perfect square on the left side: (x + -0.3888888889)(x + -0.3888888889) = 0.262345679 Calculate the square root of the right side: 0.512196914 Break this problem into two subproblems by setting (x + -0.3888888889) equal to 0.512196914 and -0.512196914.Subproblem 1
x + -0.3888888889 = 0.512196914 Simplifying x + -0.3888888889 = 0.512196914 Reorder the terms: -0.3888888889 + x = 0.512196914 Solving -0.3888888889 + x = 0.512196914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3888888889' to each side of the equation. -0.3888888889 + 0.3888888889 + x = 0.512196914 + 0.3888888889 Combine like terms: -0.3888888889 + 0.3888888889 = 0.0000000000 0.0000000000 + x = 0.512196914 + 0.3888888889 x = 0.512196914 + 0.3888888889 Combine like terms: 0.512196914 + 0.3888888889 = 0.9010858029 x = 0.9010858029 Simplifying x = 0.9010858029Subproblem 2
x + -0.3888888889 = -0.512196914 Simplifying x + -0.3888888889 = -0.512196914 Reorder the terms: -0.3888888889 + x = -0.512196914 Solving -0.3888888889 + x = -0.512196914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3888888889' to each side of the equation. -0.3888888889 + 0.3888888889 + x = -0.512196914 + 0.3888888889 Combine like terms: -0.3888888889 + 0.3888888889 = 0.0000000000 0.0000000000 + x = -0.512196914 + 0.3888888889 x = -0.512196914 + 0.3888888889 Combine like terms: -0.512196914 + 0.3888888889 = -0.1233080251 x = -0.1233080251 Simplifying x = -0.1233080251Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.9010858029, -0.1233080251}
| 4r=20 | | 5(4x-1)+3(5-3x)-2(5x+3)=-2 | | 11y-8=6x-4 | | 45-6x=10.2 | | 2(x+3)=0.03125 | | 2(7m+7)=3(1+5m) | | 3-2y+5= | | 0.40x+0.20(x+1)=0.75 | | -12p-16+-4p=-32 | | 3x-7(-7x+5)=-347 | | 1+4x=3+3x | | 6x-4+47=180 | | -19+12b=10b+11-12 | | .25(x)=16(x+3) | | 3-7y= | | -65=-5x-6(-x+12) | | 0.25*x+0=1 | | -4(0.1x+0.4)-0.9=-0.5 | | 0.25*x+0=6 | | 12h=8(25-h) | | 3+6x+8x=9 | | (4y+7)-(3+3y)=7 | | 4a-3=45 | | 2x-7(-x+22)=-55 | | (x^3+x^2-8x-12)=0 | | (x+1)(x^3+x^2-8x-12)=0 | | 3x+7-18x=14 | | (7w^2-2w+16)-4(7w^2+15)=0 | | 1/2(2x+8)=2x | | 9y+8y+38= | | -3x-1/4=0 | | -2(x-7)+5x= |