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 + -392 = 0 Reorder the terms: -392 + -21x + 2x2 = 0 Solving -392 + -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'. -196 + -10.5x + x2 = 0 Move the constant term to the right: Add '196' to each side of the equation. -196 + -10.5x + 196 + x2 = 0 + 196 Reorder the terms: -196 + 196 + -10.5x + x2 = 0 + 196 Combine like terms: -196 + 196 = 0 0 + -10.5x + x2 = 0 + 196 -10.5x + x2 = 0 + 196 Combine like terms: 0 + 196 = 196 -10.5x + x2 = 196 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 = 196 + 27.5625 Reorder the terms: 27.5625 + -10.5x + x2 = 196 + 27.5625 Combine like terms: 196 + 27.5625 = 223.5625 27.5625 + -10.5x + x2 = 223.5625 Factor a perfect square on the left side: (x + -5.25)(x + -5.25) = 223.5625 Calculate the square root of the right side: 14.952006554 Break this problem into two subproblems by setting (x + -5.25) equal to 14.952006554 and -14.952006554.Subproblem 1
x + -5.25 = 14.952006554 Simplifying x + -5.25 = 14.952006554 Reorder the terms: -5.25 + x = 14.952006554 Solving -5.25 + x = 14.952006554 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 = 14.952006554 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + x = 14.952006554 + 5.25 x = 14.952006554 + 5.25 Combine like terms: 14.952006554 + 5.25 = 20.202006554 x = 20.202006554 Simplifying x = 20.202006554Subproblem 2
x + -5.25 = -14.952006554 Simplifying x + -5.25 = -14.952006554 Reorder the terms: -5.25 + x = -14.952006554 Solving -5.25 + x = -14.952006554 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 = -14.952006554 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + x = -14.952006554 + 5.25 x = -14.952006554 + 5.25 Combine like terms: -14.952006554 + 5.25 = -9.702006554 x = -9.702006554 Simplifying x = -9.702006554Solution
The solution to the problem is based on the solutions from the subproblems. x = {20.202006554, -9.702006554}
| 6x+9=.9 | | 0.1(x+70)=-2(6-x) | | 5.3x-7=2.25+1.6x | | -7x-5=.40 | | 26=X^2+20X | | x-65=5(2x+3)-8 | | 1/8x-1=3/8 | | 7x-5=.40 | | -29+6y=2(4y-7) | | x-65=5(5x+3)-8 | | 2x+4-2x=-12 | | (2x+1)(x-2)+1=x(x+1)-5 | | 3tanx-1=tanx | | 5x-8=3x+38 | | 10n^2+9=529 | | x^2+15x=225 | | K/6=1 | | 5/x=4/30 | | 4/30=5/x | | Log(4)25=x | | N-2=10+3n+n | | 6/30=8/x | | x-35=8(2x+3)-14 | | 3x+10y=37 | | 4=15x+10 | | 25x^2+5x*5x+5= | | 2x+36=5x+18 | | Y=200-3Y | | a+2+2a+5a=19+a+5 | | Y=200Y-3Y | | 22(11+3n)=12n | | (x-3)*2+2x=9 |