If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -21x + 25 = 0 Reorder the terms: 25 + -21x + x2 = 0 Solving 25 + -21x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-25' to each side of the equation. 25 + -21x + -25 + x2 = 0 + -25 Reorder the terms: 25 + -25 + -21x + x2 = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -21x + x2 = 0 + -25 -21x + x2 = 0 + -25 Combine like terms: 0 + -25 = -25 -21x + x2 = -25 The x term is -21x. Take half its coefficient (-10.5). Square it (110.25) and add it to both sides. Add '110.25' to each side of the equation. -21x + 110.25 + x2 = -25 + 110.25 Reorder the terms: 110.25 + -21x + x2 = -25 + 110.25 Combine like terms: -25 + 110.25 = 85.25 110.25 + -21x + x2 = 85.25 Factor a perfect square on the left side: (x + -10.5)(x + -10.5) = 85.25 Calculate the square root of the right side: 9.233092656 Break this problem into two subproblems by setting (x + -10.5) equal to 9.233092656 and -9.233092656.Subproblem 1
x + -10.5 = 9.233092656 Simplifying x + -10.5 = 9.233092656 Reorder the terms: -10.5 + x = 9.233092656 Solving -10.5 + x = 9.233092656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.5' to each side of the equation. -10.5 + 10.5 + x = 9.233092656 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + x = 9.233092656 + 10.5 x = 9.233092656 + 10.5 Combine like terms: 9.233092656 + 10.5 = 19.733092656 x = 19.733092656 Simplifying x = 19.733092656Subproblem 2
x + -10.5 = -9.233092656 Simplifying x + -10.5 = -9.233092656 Reorder the terms: -10.5 + x = -9.233092656 Solving -10.5 + x = -9.233092656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.5' to each side of the equation. -10.5 + 10.5 + x = -9.233092656 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + x = -9.233092656 + 10.5 x = -9.233092656 + 10.5 Combine like terms: -9.233092656 + 10.5 = 1.266907344 x = 1.266907344 Simplifying x = 1.266907344Solution
The solution to the problem is based on the solutions from the subproblems. x = {19.733092656, 1.266907344}
| 7+4(1-6.5s)=21.5 | | (y*2)+15= | | 7s-25=-23+8s | | 4r-6=9+r | | 6.5x+20=(10+x)(4) | | n-4=43 | | 3b-2(b-5)=2(b+4) | | 280=53l | | (55-15)/2= | | 9x+4=8x+14 | | -2(4+-7k)+9=-13 | | 7626=93w | | 8/5x-3=2 | | 9x+14=9x+4 | | -15=1-5x-3x | | 9x+15=2-3x | | (7x-5)+(6x-5)+(9x-11)=180 | | 22.5+7(n-3.4)=22.5+7(n-3.4) | | z=ax+by+cxy | | 12h-(9h-5)=17 | | 4x-4+x=51 | | 5(-7n-4)-6(n-8)=28 | | 5r-1= | | F-7/g=h | | 21-2x-3=x | | 4/3=-6n/2 | | x^2+9x+64=0 | | 2+7m=19.5 | | 8/5x-6=0 | | 7m+5+m=-11 | | 8/x=-2/10 | | x^3+3x^2+3x+0.2=0 |