If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 11x + -21 = 0 Reorder the terms: -21 + 11x + x2 = 0 Solving -21 + 11x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '21' to each side of the equation. -21 + 11x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + 11x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 11x + x2 = 0 + 21 11x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 11x + x2 = 21 The x term is 11x. Take half its coefficient (5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. 11x + 30.25 + x2 = 21 + 30.25 Reorder the terms: 30.25 + 11x + x2 = 21 + 30.25 Combine like terms: 21 + 30.25 = 51.25 30.25 + 11x + x2 = 51.25 Factor a perfect square on the left side: (x + 5.5)(x + 5.5) = 51.25 Calculate the square root of the right side: 7.158910532 Break this problem into two subproblems by setting (x + 5.5) equal to 7.158910532 and -7.158910532.Subproblem 1
x + 5.5 = 7.158910532 Simplifying x + 5.5 = 7.158910532 Reorder the terms: 5.5 + x = 7.158910532 Solving 5.5 + x = 7.158910532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 7.158910532 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 7.158910532 + -5.5 x = 7.158910532 + -5.5 Combine like terms: 7.158910532 + -5.5 = 1.658910532 x = 1.658910532 Simplifying x = 1.658910532Subproblem 2
x + 5.5 = -7.158910532 Simplifying x + 5.5 = -7.158910532 Reorder the terms: 5.5 + x = -7.158910532 Solving 5.5 + x = -7.158910532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -7.158910532 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -7.158910532 + -5.5 x = -7.158910532 + -5.5 Combine like terms: -7.158910532 + -5.5 = -12.658910532 x = -12.658910532 Simplifying x = -12.658910532Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.658910532, -12.658910532}
| g-16/4= | | cos^2(3x)+cos(3x)=0 | | 10(6x-3)=510 | | -w+1=266 | | 15-15*w= | | -w+223=158 | | 9y-16=4y+9 | | d^2-4d+4=0 | | 5(9x+4)=110 | | 7(9x+9)=441 | | (m^6)/(m^4)= | | 249=192-x | | 5(10x-4)=380 | | xy+yz-xz= | | 4b+2(b-4)=10 | | -x+104=251 | | 5(5x-7)=115 | | cos^2(2x)+cos(3x)=0 | | 2(x-3)-5=4x-2(5+x) | | 5(8x-2)=310 | | 6(7x+15)=300 | | 32w^2+72w-2w^3=1152 | | x^2+5x-6750=0 | | 8(5x+16)=328 | | (ab^4)(a^3)= | | x^2+5m-6750=0 | | ab^4= | | (x+2)(5x+1)-(x+2)(3x+2)= | | 10(5x+8)=330 | | 4y-8=36x | | H=-16t^2+72t+100 | | 0.60x+0.50(30)=0.30(74) |