If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4x2 + 23x + -21 = 0 Reorder the terms: -21 + 23x + -4x2 = 0 Solving -21 + 23x + -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 + -5.75x + x2 = 0 Move the constant term to the right: Add '-5.25' to each side of the equation. 5.25 + -5.75x + -5.25 + x2 = 0 + -5.25 Reorder the terms: 5.25 + -5.25 + -5.75x + x2 = 0 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + -5.75x + x2 = 0 + -5.25 -5.75x + x2 = 0 + -5.25 Combine like terms: 0 + -5.25 = -5.25 -5.75x + x2 = -5.25 The x term is -5.75x. Take half its coefficient (-2.875). Square it (8.265625) and add it to both sides. Add '8.265625' to each side of the equation. -5.75x + 8.265625 + x2 = -5.25 + 8.265625 Reorder the terms: 8.265625 + -5.75x + x2 = -5.25 + 8.265625 Combine like terms: -5.25 + 8.265625 = 3.015625 8.265625 + -5.75x + x2 = 3.015625 Factor a perfect square on the left side: (x + -2.875)(x + -2.875) = 3.015625 Calculate the square root of the right side: 1.736555499 Break this problem into two subproblems by setting (x + -2.875) equal to 1.736555499 and -1.736555499.Subproblem 1
x + -2.875 = 1.736555499 Simplifying x + -2.875 = 1.736555499 Reorder the terms: -2.875 + x = 1.736555499 Solving -2.875 + x = 1.736555499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = 1.736555499 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = 1.736555499 + 2.875 x = 1.736555499 + 2.875 Combine like terms: 1.736555499 + 2.875 = 4.611555499 x = 4.611555499 Simplifying x = 4.611555499Subproblem 2
x + -2.875 = -1.736555499 Simplifying x + -2.875 = -1.736555499 Reorder the terms: -2.875 + x = -1.736555499 Solving -2.875 + x = -1.736555499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = -1.736555499 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = -1.736555499 + 2.875 x = -1.736555499 + 2.875 Combine like terms: -1.736555499 + 2.875 = 1.138444501 x = 1.138444501 Simplifying x = 1.138444501Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.611555499, 1.138444501}
| 7s-110=3 | | 4.6a+1.3=6.11 | | 4x+2y-17=43z | | 6(3+6x)-5=121 | | 52-7x=9x | | X=6+-3Y | | m^2-81n^2=0 | | 5b-12=3 | | n^2-8n+13=6 | | 10x^2-60x+80=0 | | 7(3x+5)=11(x+9) | | 3(4x-5)=0 | | -8X=9+1 | | x^2-20x+36= | | 10x^2-60+80=0 | | 10x+60= | | (-4-4f)(-4)=0 | | -5x+2x=2(5x+4)+6(2x+7) | | ln(x)-log(x)=1 | | 10=7+5/8 | | lnx-logx=1 | | -5x+2x=10x+8+12x+42 | | 5-(3-x)+9=1+2x | | 2x+5=8-x | | x^2+6x-15470=0 | | -8(5-7n)-8(1+7n)=-6n-6n | | (x-4)7 = (x+2)5 | | r^2-16r+48= | | 2x^3=-8x^2+4x | | 2x^3-7x+2=0 | | -3x-3(x+5)=14 | | 8q+6=72 |