If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + -84x + 72 = 0 Reorder the terms: 72 + -84x + 7x2 = 0 Solving 72 + -84x + 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'. 10.28571429 + -12x + x2 = 0 Move the constant term to the right: Add '-10.28571429' to each side of the equation. 10.28571429 + -12x + -10.28571429 + x2 = 0 + -10.28571429 Reorder the terms: 10.28571429 + -10.28571429 + -12x + x2 = 0 + -10.28571429 Combine like terms: 10.28571429 + -10.28571429 = 0.00000000 0.00000000 + -12x + x2 = 0 + -10.28571429 -12x + x2 = 0 + -10.28571429 Combine like terms: 0 + -10.28571429 = -10.28571429 -12x + x2 = -10.28571429 The x term is -12x. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12x + 36 + x2 = -10.28571429 + 36 Reorder the terms: 36 + -12x + x2 = -10.28571429 + 36 Combine like terms: -10.28571429 + 36 = 25.71428571 36 + -12x + x2 = 25.71428571 Factor a perfect square on the left side: (x + -6)(x + -6) = 25.71428571 Calculate the square root of the right side: 5.070925528 Break this problem into two subproblems by setting (x + -6) equal to 5.070925528 and -5.070925528.Subproblem 1
x + -6 = 5.070925528 Simplifying x + -6 = 5.070925528 Reorder the terms: -6 + x = 5.070925528 Solving -6 + x = 5.070925528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 5.070925528 + 6 Combine like terms: -6 + 6 = 0 0 + x = 5.070925528 + 6 x = 5.070925528 + 6 Combine like terms: 5.070925528 + 6 = 11.070925528 x = 11.070925528 Simplifying x = 11.070925528Subproblem 2
x + -6 = -5.070925528 Simplifying x + -6 = -5.070925528 Reorder the terms: -6 + x = -5.070925528 Solving -6 + x = -5.070925528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -5.070925528 + 6 Combine like terms: -6 + 6 = 0 0 + x = -5.070925528 + 6 x = -5.070925528 + 6 Combine like terms: -5.070925528 + 6 = 0.929074472 x = 0.929074472 Simplifying x = 0.929074472Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.070925528, 0.929074472}
| 123x=1 | | -7x+63=7 | | x^100=100x^2 | | 0=5*cos(0.5x) | | 2x-(5x+7)=14 | | 3(2x+4x)-3x(4x-2x+6)= | | 2857+2000+x=1.5x | | 1636+2000+x=1.62x | | 1636+2000+x=1.9x | | 1636+2000+x=1.4x | | 5(4+x)-3(7-x)= | | 1636+2000+x=1.5x | | 0+2000+x=1.22x | | 3a+4b+4ab-6a+ab= | | b^3-6b^2-1=0 | | 2000+2000+x=1.45x | | 3636+2000+x=1.55x | | 172,8=x+1,26x | | x=8/10(x=10) | | 100+25+x=1.3x | | 5z=7z-8/5 | | 0+25+x=1.25x | | 9x-72=-108 | | 5x-0.4-3.6x=5 | | (x/0.5=0.1) | | X^4+4x^2-2x=0 | | 4x^2+25y^2+8x=21 | | 3x=x+(-23) | | 3x^3+3x+3=0 | | 4x+10-40=x | | X+(X+12)=16 | | X+(X-12)=16 |