If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5x2 + 36x + -21 = 0 Reorder the terms: -21 + 36x + 5x2 = 0 Solving -21 + 36x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -4.2 + 7.2x + x2 = 0 Move the constant term to the right: Add '4.2' to each side of the equation. -4.2 + 7.2x + 4.2 + x2 = 0 + 4.2 Reorder the terms: -4.2 + 4.2 + 7.2x + x2 = 0 + 4.2 Combine like terms: -4.2 + 4.2 = 0.0 0.0 + 7.2x + x2 = 0 + 4.2 7.2x + x2 = 0 + 4.2 Combine like terms: 0 + 4.2 = 4.2 7.2x + x2 = 4.2 The x term is 7.2x. Take half its coefficient (3.6). Square it (12.96) and add it to both sides. Add '12.96' to each side of the equation. 7.2x + 12.96 + x2 = 4.2 + 12.96 Reorder the terms: 12.96 + 7.2x + x2 = 4.2 + 12.96 Combine like terms: 4.2 + 12.96 = 17.16 12.96 + 7.2x + x2 = 17.16 Factor a perfect square on the left side: (x + 3.6)(x + 3.6) = 17.16 Calculate the square root of the right side: 4.142463035 Break this problem into two subproblems by setting (x + 3.6) equal to 4.142463035 and -4.142463035.Subproblem 1
x + 3.6 = 4.142463035 Simplifying x + 3.6 = 4.142463035 Reorder the terms: 3.6 + x = 4.142463035 Solving 3.6 + x = 4.142463035 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.6' to each side of the equation. 3.6 + -3.6 + x = 4.142463035 + -3.6 Combine like terms: 3.6 + -3.6 = 0.0 0.0 + x = 4.142463035 + -3.6 x = 4.142463035 + -3.6 Combine like terms: 4.142463035 + -3.6 = 0.542463035 x = 0.542463035 Simplifying x = 0.542463035Subproblem 2
x + 3.6 = -4.142463035 Simplifying x + 3.6 = -4.142463035 Reorder the terms: 3.6 + x = -4.142463035 Solving 3.6 + x = -4.142463035 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.6' to each side of the equation. 3.6 + -3.6 + x = -4.142463035 + -3.6 Combine like terms: 3.6 + -3.6 = 0.0 0.0 + x = -4.142463035 + -3.6 x = -4.142463035 + -3.6 Combine like terms: -4.142463035 + -3.6 = -7.742463035 x = -7.742463035 Simplifying x = -7.742463035Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.542463035, -7.742463035}
| 13x-100=17 | | 2a+5+111=180 | | 6(2+w)=5(7+w) | | 7.65=2.25+0.20(n-1) | | 8a-6-29=48 | | 8(x-8)=2(x+67) | | -2x+3+3x=-3+9 | | 4x-2(x-2)=-6+5x-5 | | 2/5+4/3= | | 625+0.1=925 | | 3(y+5)-4=y+11 | | 4x-6(3-x)=3 | | 2y=16-6x | | 6(3x-7)=7x+13 | | 20-6x=9x-10 | | x+6d=6c | | 8x+6y=-14 | | 2a+4b=26 | | (2y)+(6y)=48 | | 12x^2-5x-24=0 | | 104x-12.5=-3.8 | | 2x-16=2y | | (3mn)(8m^3n^3)(2m^4)= | | 3x^3+2x^2-12x-18= | | 3.5+p=12.63 | | 5(a+2)-3(2a+5)=17a-2(5a+1)+5(a-1) | | 4x-12=3(x-4)+x | | 1300f=29035 | | 3xy(3xy)= | | y+2(2x-3)=3x-4(2y+1) | | cos(90x)=1-x^2 | | 5x+15=6x+13 |