If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + -21x + 7 = 0 Reorder the terms: 7 + -21x + 2x2 = 0 Solving 7 + -21x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + -10.5x + x2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + -10.5x + -3.5 + x2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + -10.5x + x2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + -10.5x + x2 = 0 + -3.5 -10.5x + x2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 -10.5x + x2 = -3.5 The x term is -10.5x. Take half its coefficient (-5.25). Square it (27.5625) and add it to both sides. Add '27.5625' to each side of the equation. -10.5x + 27.5625 + x2 = -3.5 + 27.5625 Reorder the terms: 27.5625 + -10.5x + x2 = -3.5 + 27.5625 Combine like terms: -3.5 + 27.5625 = 24.0625 27.5625 + -10.5x + x2 = 24.0625 Factor a perfect square on the left side: (x + -5.25)(x + -5.25) = 24.0625 Calculate the square root of the right side: 4.905354218 Break this problem into two subproblems by setting (x + -5.25) equal to 4.905354218 and -4.905354218.Subproblem 1
x + -5.25 = 4.905354218 Simplifying x + -5.25 = 4.905354218 Reorder the terms: -5.25 + x = 4.905354218 Solving -5.25 + x = 4.905354218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.25' to each side of the equation. -5.25 + 5.25 + x = 4.905354218 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + x = 4.905354218 + 5.25 x = 4.905354218 + 5.25 Combine like terms: 4.905354218 + 5.25 = 10.155354218 x = 10.155354218 Simplifying x = 10.155354218Subproblem 2
x + -5.25 = -4.905354218 Simplifying x + -5.25 = -4.905354218 Reorder the terms: -5.25 + x = -4.905354218 Solving -5.25 + x = -4.905354218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.25' to each side of the equation. -5.25 + 5.25 + x = -4.905354218 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + x = -4.905354218 + 5.25 x = -4.905354218 + 5.25 Combine like terms: -4.905354218 + 5.25 = 0.344645782 x = 0.344645782 Simplifying x = 0.344645782Solution
The solution to the problem is based on the solutions from the subproblems. x = {10.155354218, 0.344645782}
| (5a-2)(6a-5)= | | 5d+4d+d-9d-1=6 | | -8x+32=-24 | | 7n-4n=3n | | x+(x*.169)=10000 | | x+(x*169)=10000 | | -2x-2=17.6 | | -2x-4=17 | | 5a-9=41 | | 10n=.025 | | w/24=8 | | 3x-(4)=2x+(1) | | x+(x*1.169)=10000 | | 0.04x=20 | | 6+x=9+x-x | | 5(3-x)-4=18 | | 4.5/x=3 | | n+2-5/25-5=2n+1/5 | | 112,06=x+62,3/4 | | 12=-1/3t | | 0.3/x=1.5 | | 7+ab-a= | | x+3x-5/6-5=3x+4/3 | | 112,06=x+623/4 | | -2(2x-9)=-22 | | 10x+3=4x-21 | | 29+x=6 | | x=3x/8 | | 2y^2+2y^3= | | 6x^2-30x+5=0 | | -5(-2x-1)=-37 | | 4(x+9)=10 |