If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x2 + 8x = -7 Reorder the terms: 8x + -1x2 = -7 Solving 8x + -1x2 = -7 Solving for variable 'x'. Reorder the terms: 7 + 8x + -1x2 = -7 + 7 Combine like terms: -7 + 7 = 0 7 + 8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -7 + -8x + x2 = 0 Move the constant term to the right: Add '7' to each side of the equation. -7 + -8x + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + -8x + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -8x + x2 = 0 + 7 -8x + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 -8x + x2 = 7 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 7 + 16 Reorder the terms: 16 + -8x + x2 = 7 + 16 Combine like terms: 7 + 16 = 23 16 + -8x + x2 = 23 Factor a perfect square on the left side: (x + -4)(x + -4) = 23 Calculate the square root of the right side: 4.795831523 Break this problem into two subproblems by setting (x + -4) equal to 4.795831523 and -4.795831523.Subproblem 1
x + -4 = 4.795831523 Simplifying x + -4 = 4.795831523 Reorder the terms: -4 + x = 4.795831523 Solving -4 + x = 4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 4.795831523 + 4 Combine like terms: -4 + 4 = 0 0 + x = 4.795831523 + 4 x = 4.795831523 + 4 Combine like terms: 4.795831523 + 4 = 8.795831523 x = 8.795831523 Simplifying x = 8.795831523Subproblem 2
x + -4 = -4.795831523 Simplifying x + -4 = -4.795831523 Reorder the terms: -4 + x = -4.795831523 Solving -4 + x = -4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -4.795831523 + 4 Combine like terms: -4 + 4 = 0 0 + x = -4.795831523 + 4 x = -4.795831523 + 4 Combine like terms: -4.795831523 + 4 = -0.795831523 x = -0.795831523 Simplifying x = -0.795831523Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.795831523, -0.795831523}
| 40d+0.25=25d+0.45 | | s=21/0.75 | | 10p^2=-12p | | -10x-5x-120=90 | | 2x^2+2y^2-12x-8y-24=0 | | -1-4+z=-3 | | -17=6q-7 | | 2x+1x+3x=18374957368 | | 3x+2+5x=-22 | | 8-4(2+5^2)/12 | | 5b-7=b+9 | | 8(j-8)=2j-4 | | -(-5x)=(-75) | | 10x-9=-2-69 | | 8=34-2x | | 2(x+4)-5(x-3)=30 | | -x-53+7x=31 | | 0=4x^2+120x+400 | | -2(0)+y=4 | | 5c+2=-7 | | -21+6x-7x=8 | | -2x+(0)=4 | | -91/6z-11 | | 3(k+2)=k+14 | | 2[-2(5x+3)+5(5x-5)]= | | x+(x+3x)=250000 | | (0)-2y=4 | | 4x-2x-3=17 | | 84-2x=12-8x | | 4x+3(x-10)=10x-20 | | 14m^2+392=161m | | (4x/(2x+3)) |