If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -16x2 + 80x + -69 = 0 Reorder the terms: -69 + 80x + -16x2 = 0 Solving -69 + 80x + -16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. 4.3125 + -5x + x2 = 0 Move the constant term to the right: Add '-4.3125' to each side of the equation. 4.3125 + -5x + -4.3125 + x2 = 0 + -4.3125 Reorder the terms: 4.3125 + -4.3125 + -5x + x2 = 0 + -4.3125 Combine like terms: 4.3125 + -4.3125 = 0.0000 0.0000 + -5x + x2 = 0 + -4.3125 -5x + x2 = 0 + -4.3125 Combine like terms: 0 + -4.3125 = -4.3125 -5x + x2 = -4.3125 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -4.3125 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -4.3125 + 6.25 Combine like terms: -4.3125 + 6.25 = 1.9375 6.25 + -5x + x2 = 1.9375 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 1.9375 Calculate the square root of the right side: 1.391941091 Break this problem into two subproblems by setting (x + -2.5) equal to 1.391941091 and -1.391941091.Subproblem 1
x + -2.5 = 1.391941091 Simplifying x + -2.5 = 1.391941091 Reorder the terms: -2.5 + x = 1.391941091 Solving -2.5 + x = 1.391941091 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 1.391941091 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 1.391941091 + 2.5 x = 1.391941091 + 2.5 Combine like terms: 1.391941091 + 2.5 = 3.891941091 x = 3.891941091 Simplifying x = 3.891941091Subproblem 2
x + -2.5 = -1.391941091 Simplifying x + -2.5 = -1.391941091 Reorder the terms: -2.5 + x = -1.391941091 Solving -2.5 + x = -1.391941091 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -1.391941091 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -1.391941091 + 2.5 x = -1.391941091 + 2.5 Combine like terms: -1.391941091 + 2.5 = 1.108058909 x = 1.108058909 Simplifying x = 1.108058909Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.891941091, 1.108058909}
| 5x+5=4x-5 | | (2a+30)+(a+30)=180 | | 7x^2-8x-5=-6 | | a+2b+3c=45 | | 0=-x^3+11x^2+12x | | =0.25(8x-4)-2(x-4)+13(x-1) | | -5.8(2p+5)-2.4(3p-6)= | | -12/x+24/x-2=4 | | .2x+15=6x | | 7xsquared-8x-5=-6 | | 5x^3+15x^2-6x-18=0 | | 5-32-18=z-1+8z | | (5x-2y)-(x-4y)= | | (w-7)(6w^2-4w+3)= | | (X-8)(7x+4)= | | 17*-2= | | 1.4(1.5x)+1.4(-2.2y)+(-4.5)(2.0x)+(-4.5)(1.5y)= | | -7+4x=-4.6 | | -5(5x-3)=25 | | 21x-1-10x=23 | | 3y+6.8=16.2 | | 42n=-9 | | [t+3]=0 | | 8x+2=2(3x+1) | | 4x/x | | -5*(-4)-3(-2)-1=0 | | 3+7ln(x)=52 | | 3x+5x-x-2x= | | 3(4x-2)-2x= | | a+6b=18 | | [b-8]=4 | | 3/5x=51 |