If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -7x2 + 2x + 4 = 0 Reorder the terms: 4 + 2x + -7x2 = 0 Solving 4 + 2x + -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'. -0.5714285714 + -0.2857142857x + x2 = 0 Move the constant term to the right: Add '0.5714285714' to each side of the equation. -0.5714285714 + -0.2857142857x + 0.5714285714 + x2 = 0 + 0.5714285714 Reorder the terms: -0.5714285714 + 0.5714285714 + -0.2857142857x + x2 = 0 + 0.5714285714 Combine like terms: -0.5714285714 + 0.5714285714 = 0.0000000000 0.0000000000 + -0.2857142857x + x2 = 0 + 0.5714285714 -0.2857142857x + x2 = 0 + 0.5714285714 Combine like terms: 0 + 0.5714285714 = 0.5714285714 -0.2857142857x + x2 = 0.5714285714 The x term is -0.2857142857x. Take half its coefficient (-0.1428571429). Square it (0.02040816328) and add it to both sides. Add '0.02040816328' to each side of the equation. -0.2857142857x + 0.02040816328 + x2 = 0.5714285714 + 0.02040816328 Reorder the terms: 0.02040816328 + -0.2857142857x + x2 = 0.5714285714 + 0.02040816328 Combine like terms: 0.5714285714 + 0.02040816328 = 0.59183673468 0.02040816328 + -0.2857142857x + x2 = 0.59183673468 Factor a perfect square on the left side: (x + -0.1428571429)(x + -0.1428571429) = 0.59183673468 Calculate the square root of the right side: 0.769309258 Break this problem into two subproblems by setting (x + -0.1428571429) equal to 0.769309258 and -0.769309258.Subproblem 1
x + -0.1428571429 = 0.769309258 Simplifying x + -0.1428571429 = 0.769309258 Reorder the terms: -0.1428571429 + x = 0.769309258 Solving -0.1428571429 + x = 0.769309258 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = 0.769309258 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = 0.769309258 + 0.1428571429 x = 0.769309258 + 0.1428571429 Combine like terms: 0.769309258 + 0.1428571429 = 0.9121664009 x = 0.9121664009 Simplifying x = 0.9121664009Subproblem 2
x + -0.1428571429 = -0.769309258 Simplifying x + -0.1428571429 = -0.769309258 Reorder the terms: -0.1428571429 + x = -0.769309258 Solving -0.1428571429 + x = -0.769309258 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = -0.769309258 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = -0.769309258 + 0.1428571429 x = -0.769309258 + 0.1428571429 Combine like terms: -0.769309258 + 0.1428571429 = -0.6264521151 x = -0.6264521151 Simplifying x = -0.6264521151Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.9121664009, -0.6264521151}
| 37=19+m | | 19x+14(12x-5)+6(9x+11)=-3-12(3x+14) | | -6x^2+3x+9=0 | | 5x+(5/7)=6x+(1/7) | | 0.85+0.5(10-x)=.10(-27) | | w/7=17.5 | | (6(x+5)/5)=2x-2 | | 7/5v=35 | | 3x-12=5x+2 | | 940=-16t^2+1800 | | 7x-5-4x=2x-4 | | 7x^7+7x^6-56x^5+35x^4= | | 940=-16t^2+18000 | | 2x-10/3=5/6 | | 2x-2(-6.5)=-5 | | 7x=-14/9 | | -17-17(17x-13)=11-7(-17x+9)+8(6x-3) | | 1/2x+2/3=-3 | | (3/10x)-(1/5)=1 | | -4y=26 | | 9x^7-54x^5= | | 3.2x-5=17.4 | | 3(5n-2)=5(n-2) | | 8(x+1)+1=5x+3(4+x) | | 2r-3.1= | | (7y+4)-(3+6y)=5 | | -5=-9+n/2 | | 6(-5x-12)=-12-18(6x-15)-11(-14x-10) | | (x/6)+4=(x/6) | | x/6+4=x/6 | | 5y^7/20y | | 8(x+8)=80 |