If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x(11x + 9) = 135 Reorder the terms: 7x(9 + 11x) = 135 (9 * 7x + 11x * 7x) = 135 (63x + 77x2) = 135 Solving 63x + 77x2 = 135 Solving for variable 'x'. Reorder the terms: -135 + 63x + 77x2 = 135 + -135 Combine like terms: 135 + -135 = 0 -135 + 63x + 77x2 = 0 Begin completing the square. Divide all terms by 77 the coefficient of the squared term: Divide each side by '77'. -1.753246753 + 0.8181818182x + x2 = 0 Move the constant term to the right: Add '1.753246753' to each side of the equation. -1.753246753 + 0.8181818182x + 1.753246753 + x2 = 0 + 1.753246753 Reorder the terms: -1.753246753 + 1.753246753 + 0.8181818182x + x2 = 0 + 1.753246753 Combine like terms: -1.753246753 + 1.753246753 = 0.000000000 0.000000000 + 0.8181818182x + x2 = 0 + 1.753246753 0.8181818182x + x2 = 0 + 1.753246753 Combine like terms: 0 + 1.753246753 = 1.753246753 0.8181818182x + x2 = 1.753246753 The x term is 0.8181818182x. Take half its coefficient (0.4090909091). Square it (0.1673553719) and add it to both sides. Add '0.1673553719' to each side of the equation. 0.8181818182x + 0.1673553719 + x2 = 1.753246753 + 0.1673553719 Reorder the terms: 0.1673553719 + 0.8181818182x + x2 = 1.753246753 + 0.1673553719 Combine like terms: 1.753246753 + 0.1673553719 = 1.9206021249 0.1673553719 + 0.8181818182x + x2 = 1.9206021249 Factor a perfect square on the left side: (x + 0.4090909091)(x + 0.4090909091) = 1.9206021249 Calculate the square root of the right side: 1.385857902 Break this problem into two subproblems by setting (x + 0.4090909091) equal to 1.385857902 and -1.385857902.Subproblem 1
x + 0.4090909091 = 1.385857902 Simplifying x + 0.4090909091 = 1.385857902 Reorder the terms: 0.4090909091 + x = 1.385857902 Solving 0.4090909091 + x = 1.385857902 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4090909091' to each side of the equation. 0.4090909091 + -0.4090909091 + x = 1.385857902 + -0.4090909091 Combine like terms: 0.4090909091 + -0.4090909091 = 0.0000000000 0.0000000000 + x = 1.385857902 + -0.4090909091 x = 1.385857902 + -0.4090909091 Combine like terms: 1.385857902 + -0.4090909091 = 0.9767669929 x = 0.9767669929 Simplifying x = 0.9767669929Subproblem 2
x + 0.4090909091 = -1.385857902 Simplifying x + 0.4090909091 = -1.385857902 Reorder the terms: 0.4090909091 + x = -1.385857902 Solving 0.4090909091 + x = -1.385857902 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4090909091' to each side of the equation. 0.4090909091 + -0.4090909091 + x = -1.385857902 + -0.4090909091 Combine like terms: 0.4090909091 + -0.4090909091 = 0.0000000000 0.0000000000 + x = -1.385857902 + -0.4090909091 x = -1.385857902 + -0.4090909091 Combine like terms: -1.385857902 + -0.4090909091 = -1.7949488111 x = -1.7949488111 Simplifying x = -1.7949488111Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.9767669929, -1.7949488111}
| 7x(11x+9)=135 | | 3y+3y=42 | | 19-8y=3(y-1) | | 2/5*5= | | 3(-7+x)=4x+.75 | | 3a+4=a+8 | | h=7g-f | | -17=-3-2n | | 16x^2-y^2-9x^2=0 | | (2x-4)3-4(x+2)=2-3x | | 20=25y | | -3y+5=-5 | | Bx-c=7 | | 3(x+5)+1=5+3x | | 5x+5(-5x-14)=170 | | 3(-7+x)=4x+1*3 | | a^2-5a+4=0 | | 7x^2+57+8=0 | | 3ax-2ax=5 | | 9c=44 | | 10.125a^2-19a+7.5=0 | | x^2-5x-300=0 | | 120=0.5(200-x) | | Cx=-9 | | 5x^2=12x-9 | | 9x^2+10=9x | | -3x-6=-7x-4 | | -2m-5-3(m-1)=5m-(7m-1)-8m+7 | | X+b=3 | | 6n^3-9n^2-15n=0 | | x+4=-2x+8+5x | | -5(3z*-4)+9z=-4 |