If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 9x = -7 Reorder the terms: 9x + x2 = -7 Solving 9x + x2 = -7 Solving for variable 'x'. Reorder the terms: 7 + 9x + x2 = -7 + 7 Combine like terms: -7 + 7 = 0 7 + 9x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + 9x + -7 + x2 = 0 + -7 Reorder the terms: 7 + -7 + 9x + x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 9x + x2 = 0 + -7 9x + x2 = 0 + -7 Combine like terms: 0 + -7 = -7 9x + x2 = -7 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = -7 + 20.25 Reorder the terms: 20.25 + 9x + x2 = -7 + 20.25 Combine like terms: -7 + 20.25 = 13.25 20.25 + 9x + x2 = 13.25 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 13.25 Calculate the square root of the right side: 3.640054945 Break this problem into two subproblems by setting (x + 4.5) equal to 3.640054945 and -3.640054945.Subproblem 1
x + 4.5 = 3.640054945 Simplifying x + 4.5 = 3.640054945 Reorder the terms: 4.5 + x = 3.640054945 Solving 4.5 + x = 3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 3.640054945 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 3.640054945 + -4.5 x = 3.640054945 + -4.5 Combine like terms: 3.640054945 + -4.5 = -0.859945055 x = -0.859945055 Simplifying x = -0.859945055Subproblem 2
x + 4.5 = -3.640054945 Simplifying x + 4.5 = -3.640054945 Reorder the terms: 4.5 + x = -3.640054945 Solving 4.5 + x = -3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -3.640054945 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -3.640054945 + -4.5 x = -3.640054945 + -4.5 Combine like terms: -3.640054945 + -4.5 = -8.140054945 x = -8.140054945 Simplifying x = -8.140054945Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.859945055, -8.140054945}
| j^2-9jk-10k^2= | | 3n+5=2n | | (X^2)-4x=21 | | h^2+20=12h | | 4x+1=7x | | m^2-mv-56v^2= | | 10x-18=182 | | v^2+4v-5=0 | | 14+x+5x=3x-5x | | 4-v=1+2v | | 48-16g+g^2= | | 2(4x-6)-9=14x | | 77=5/9(f-32) | | 32+18r+r^2= | | 19x^2-17x=0 | | -2y+12=-2y+12 | | a-8+a=1+2a+2a+5 | | 5x=105 | | -w^2+10w-21=0 | | -2x-6y=2 | | z^2-11z+30= | | (x^2+2x-8)(2x-18)=0 | | 15+7r+r(r-3)-r*r= | | c^2+4c-45= | | -160=-6(2n+8)+2n | | -308k=6160 | | x^3-13x+12=0 | | 4(3s)+7(2s)= | | n^2-3n-28= | | 18w^2+81w-45=0 | | 4(3xs)+7(2s)= | | x+19=36-19 |