If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + -14x + -21 = 0 Reorder the terms: -21 + -14x + 4x2 = 0 Solving -21 + -14x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -5.25 + -3.5x + x2 = 0 Move the constant term to the right: Add '5.25' to each side of the equation. -5.25 + -3.5x + 5.25 + x2 = 0 + 5.25 Reorder the terms: -5.25 + 5.25 + -3.5x + x2 = 0 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + -3.5x + x2 = 0 + 5.25 -3.5x + x2 = 0 + 5.25 Combine like terms: 0 + 5.25 = 5.25 -3.5x + x2 = 5.25 The x term is -3.5x. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5x + 3.0625 + x2 = 5.25 + 3.0625 Reorder the terms: 3.0625 + -3.5x + x2 = 5.25 + 3.0625 Combine like terms: 5.25 + 3.0625 = 8.3125 3.0625 + -3.5x + x2 = 8.3125 Factor a perfect square on the left side: (x + -1.75)(x + -1.75) = 8.3125 Calculate the square root of the right side: 2.883140649 Break this problem into two subproblems by setting (x + -1.75) equal to 2.883140649 and -2.883140649.Subproblem 1
x + -1.75 = 2.883140649 Simplifying x + -1.75 = 2.883140649 Reorder the terms: -1.75 + x = 2.883140649 Solving -1.75 + x = 2.883140649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 2.883140649 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 2.883140649 + 1.75 x = 2.883140649 + 1.75 Combine like terms: 2.883140649 + 1.75 = 4.633140649 x = 4.633140649 Simplifying x = 4.633140649Subproblem 2
x + -1.75 = -2.883140649 Simplifying x + -1.75 = -2.883140649 Reorder the terms: -1.75 + x = -2.883140649 Solving -1.75 + x = -2.883140649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -2.883140649 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -2.883140649 + 1.75 x = -2.883140649 + 1.75 Combine like terms: -2.883140649 + 1.75 = -1.133140649 x = -1.133140649 Simplifying x = -1.133140649Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.633140649, -1.133140649}
| 2.5x^2-14x-49=0 | | 11x*6.3x=7500 | | 11x*6.3y=7500 | | 11x*6y=7500 | | Cosx(4cos^2x-5)=0 | | 3+7r=3+7r | | 7x^2-14x-49=0 | | 6x^2-14x-49=0 | | 4x^2-14x-49=0 | | 2x^2-14x-49=0 | | 6x^2-14x+49=0 | | 5x^2-14x+49=0 | | 3=4sin(8x) | | 1000*sinx=9 | | (2x-y)*(2x-y)= | | (6w-13)+(-8w+4)= | | (n-2)*180+360=180*n | | 180*(n-2)+360=180*n | | 4x-3y=-21 | | (9x+8)=(18x+20) | | 11x^2+13x+9=0 | | 4x^3=100x | | x=9*sqrt(x) | | -x^5+3x^4-4x+12=0 | | 3x^4-7x^3+5x^2-7x+2=0 | | 180-10x+10+5x+5+50=180 | | 3(x-1)-(x-2)+5=8 | | P(x)=-6X^3+13x^2-2 | | 3x^4-7x^2+5x^2-7x+2=0 | | 0.75t^2=12t | | 4x^2+50x+34=0 | | 10x+10-180+5x+5+50=180 |