If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 20x = -7 Reorder the terms: 20x + x2 = -7 Solving 20x + x2 = -7 Solving for variable 'x'. Reorder the terms: 7 + 20x + x2 = -7 + 7 Combine like terms: -7 + 7 = 0 7 + 20x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + 20x + -7 + x2 = 0 + -7 Reorder the terms: 7 + -7 + 20x + x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 20x + x2 = 0 + -7 20x + x2 = 0 + -7 Combine like terms: 0 + -7 = -7 20x + x2 = -7 The x term is 20x. Take half its coefficient (10). Square it (100) and add it to both sides. Add '100' to each side of the equation. 20x + 100 + x2 = -7 + 100 Reorder the terms: 100 + 20x + x2 = -7 + 100 Combine like terms: -7 + 100 = 93 100 + 20x + x2 = 93 Factor a perfect square on the left side: (x + 10)(x + 10) = 93 Calculate the square root of the right side: 9.643650761 Break this problem into two subproblems by setting (x + 10) equal to 9.643650761 and -9.643650761.Subproblem 1
x + 10 = 9.643650761 Simplifying x + 10 = 9.643650761 Reorder the terms: 10 + x = 9.643650761 Solving 10 + x = 9.643650761 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 9.643650761 + -10 Combine like terms: 10 + -10 = 0 0 + x = 9.643650761 + -10 x = 9.643650761 + -10 Combine like terms: 9.643650761 + -10 = -0.356349239 x = -0.356349239 Simplifying x = -0.356349239Subproblem 2
x + 10 = -9.643650761 Simplifying x + 10 = -9.643650761 Reorder the terms: 10 + x = -9.643650761 Solving 10 + x = -9.643650761 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -9.643650761 + -10 Combine like terms: 10 + -10 = 0 0 + x = -9.643650761 + -10 x = -9.643650761 + -10 Combine like terms: -9.643650761 + -10 = -19.643650761 x = -19.643650761 Simplifying x = -19.643650761Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.356349239, -19.643650761}
| 7x+27=3x+11 | | -2x+26=x+5 | | h^2+3h-90=0 | | 72x+1=83 | | h^2+3h=90 | | 5(x+2)+8=2(x-3) | | 6x+1-3x=4+2X+5 | | 5x^3-245x=0 | | y^2-9x^4=0 | | -4(5t-5)+9t=6t-5 | | 5x^3-245=0 | | 5x-7=5(x-2)+3 | | 718=.33(3.14)(49)h | | -2x-4y=1 | | 718=.33(3.14)(49) | | 2x+1=56 | | 16*27= | | 7y-3y-18=10 | | 6(n-4)-(3-2n)=7n | | 3y+3-3y-y=-6 | | 8x^2-3x-11=0 | | 3y-2y-8=8 | | 2(b+9)+13=47 | | 3y+6+2y-6=-15 | | 1/3-3= | | u^2+12u-36=0 | | -6(z+3)+3(4z-5)=5(z-4)+14 | | 5(a-12)+2(a+15)=a-9 | | 15(-0.4)+14=2(5-0.4+6) | | 2y-2-y=-2 | | 15(-0.4)+14=2(5x-0.4+6) | | 2x^2-3x=-5 |