If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + -63x = 69 Reorder the terms: -63x + 7x2 = 69 Solving -63x + 7x2 = 69 Solving for variable 'x'. Reorder the terms: -69 + -63x + 7x2 = 69 + -69 Combine like terms: 69 + -69 = 0 -69 + -63x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -9.857142857 + -9x + x2 = 0 Move the constant term to the right: Add '9.857142857' to each side of the equation. -9.857142857 + -9x + 9.857142857 + x2 = 0 + 9.857142857 Reorder the terms: -9.857142857 + 9.857142857 + -9x + x2 = 0 + 9.857142857 Combine like terms: -9.857142857 + 9.857142857 = 0.000000000 0.000000000 + -9x + x2 = 0 + 9.857142857 -9x + x2 = 0 + 9.857142857 Combine like terms: 0 + 9.857142857 = 9.857142857 -9x + x2 = 9.857142857 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = 9.857142857 + 20.25 Reorder the terms: 20.25 + -9x + x2 = 9.857142857 + 20.25 Combine like terms: 9.857142857 + 20.25 = 30.107142857 20.25 + -9x + x2 = 30.107142857 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = 30.107142857 Calculate the square root of the right side: 5.486997618 Break this problem into two subproblems by setting (x + -4.5) equal to 5.486997618 and -5.486997618.Subproblem 1
x + -4.5 = 5.486997618 Simplifying x + -4.5 = 5.486997618 Reorder the terms: -4.5 + x = 5.486997618 Solving -4.5 + x = 5.486997618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 5.486997618 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 5.486997618 + 4.5 x = 5.486997618 + 4.5 Combine like terms: 5.486997618 + 4.5 = 9.986997618 x = 9.986997618 Simplifying x = 9.986997618Subproblem 2
x + -4.5 = -5.486997618 Simplifying x + -4.5 = -5.486997618 Reorder the terms: -4.5 + x = -5.486997618 Solving -4.5 + x = -5.486997618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -5.486997618 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -5.486997618 + 4.5 x = -5.486997618 + 4.5 Combine like terms: -5.486997618 + 4.5 = -0.986997618 x = -0.986997618 Simplifying x = -0.986997618Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.986997618, -0.986997618}
| 6-7x=23-14x | | 7h=21 | | 4x+17=10x-24 | | (3X-1)2=45 | | 8x-18=10x-24 | | -x-2=-6 | | (x-2)(x+10)= | | (-2x-3+8x^2)*(1+4x)= | | 9x-21=51 | | T^2-6t+9=-25 | | 9a+21= | | 6(x+2)/20= | | 9a=21 | | 90-5x=12-8x | | 3+1/10/1+1/5= | | -6x-4=-58 | | 3x=36x | | 210-7x=38x+15 | | 2-(2x+1)=15 | | 2x^4-5x^3+3x^2+x-1=0 | | 5x*2+8x+2=0 | | -5x+10y=40 | | 11x-1=10x+5 | | 2+2x=5x+38 | | 0.8(3+x)=0.5(2x-3)-0.1 | | 2+2=5+38 | | x+8=3(x+2) | | 7x+1=2x+6 | | -k-5(5-5k)=-49 | | x^2+3x-22=p | | 72x-2x^2=0 | | 48=-2x+2(-7x-8) |