If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -3x2 + 18x + -4 = 0 Reorder the terms: -4 + 18x + -3x2 = 0 Solving -4 + 18x + -3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. 1.333333333 + -6x + x2 = 0 Move the constant term to the right: Add '-1.333333333' to each side of the equation. 1.333333333 + -6x + -1.333333333 + x2 = 0 + -1.333333333 Reorder the terms: 1.333333333 + -1.333333333 + -6x + x2 = 0 + -1.333333333 Combine like terms: 1.333333333 + -1.333333333 = 0.000000000 0.000000000 + -6x + x2 = 0 + -1.333333333 -6x + x2 = 0 + -1.333333333 Combine like terms: 0 + -1.333333333 = -1.333333333 -6x + x2 = -1.333333333 The x term is -6x. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x + 9 + x2 = -1.333333333 + 9 Reorder the terms: 9 + -6x + x2 = -1.333333333 + 9 Combine like terms: -1.333333333 + 9 = 7.666666667 9 + -6x + x2 = 7.666666667 Factor a perfect square on the left side: (x + -3)(x + -3) = 7.666666667 Calculate the square root of the right side: 2.768874621 Break this problem into two subproblems by setting (x + -3) equal to 2.768874621 and -2.768874621.Subproblem 1
x + -3 = 2.768874621 Simplifying x + -3 = 2.768874621 Reorder the terms: -3 + x = 2.768874621 Solving -3 + x = 2.768874621 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.768874621 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.768874621 + 3 x = 2.768874621 + 3 Combine like terms: 2.768874621 + 3 = 5.768874621 x = 5.768874621 Simplifying x = 5.768874621Subproblem 2
x + -3 = -2.768874621 Simplifying x + -3 = -2.768874621 Reorder the terms: -3 + x = -2.768874621 Solving -3 + x = -2.768874621 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.768874621 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.768874621 + 3 x = -2.768874621 + 3 Combine like terms: -2.768874621 + 3 = 0.231125379 x = 0.231125379 Simplifying x = 0.231125379Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.768874621, 0.231125379}
| 7+6x=20+6x | | 4x^2+6x-38=2x+10 | | 3x+6-6(-2x-1)=3(x-1) | | h=-4.9t^2+3t+10 | | 4x=6-(x-4) | | 2(2+2)=12 | | 2-3f-5t+5f=6 | | 2.5x+3.5x=56-2x | | 2+4+6+x=29 | | 5+2(7u-6)=-3(2u-1)+4u | | x-2y=5c | | 3x^2=29 | | 17-n=9 | | 9+7x=-7x+163 | | Sin(7x+15)=cos(3x+40) | | 9+7x=-7x+162 | | 4(x-1)-6=2(-6x+9)-2x | | 23x-14=-5x-7 | | 5x+7=2x-6 | | 7x-3=0+4x | | Y=2.5x-8 | | 2(x-9)=7x+22 | | 4y+2x=-16 | | 12+5x=2x-4 | | 0.5x=q | | 6x(4+7)=19 | | 6q^2+5q-1=0 | | 2cos^2x-2cosx+1=0 | | 30x+2y-3x-49=0 | | 3X^3+27=0 | | 3x-11=9x-5 | | x^3+4.6x+3.2=0 |