If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 18x = 9 Reorder the terms: 18x + x2 = 9 Solving 18x + x2 = 9 Solving for variable 'x'. Reorder the terms: -9 + 18x + x2 = 9 + -9 Combine like terms: 9 + -9 = 0 -9 + 18x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + 18x + 9 + x2 = 0 + 9 Reorder the terms: -9 + 9 + 18x + x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 18x + x2 = 0 + 9 18x + x2 = 0 + 9 Combine like terms: 0 + 9 = 9 18x + x2 = 9 The x term is 18x. Take half its coefficient (9). Square it (81) and add it to both sides. Add '81' to each side of the equation. 18x + 81 + x2 = 9 + 81 Reorder the terms: 81 + 18x + x2 = 9 + 81 Combine like terms: 9 + 81 = 90 81 + 18x + x2 = 90 Factor a perfect square on the left side: (x + 9)(x + 9) = 90 Calculate the square root of the right side: 9.486832981 Break this problem into two subproblems by setting (x + 9) equal to 9.486832981 and -9.486832981.Subproblem 1
x + 9 = 9.486832981 Simplifying x + 9 = 9.486832981 Reorder the terms: 9 + x = 9.486832981 Solving 9 + x = 9.486832981 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 9.486832981 + -9 Combine like terms: 9 + -9 = 0 0 + x = 9.486832981 + -9 x = 9.486832981 + -9 Combine like terms: 9.486832981 + -9 = 0.486832981 x = 0.486832981 Simplifying x = 0.486832981Subproblem 2
x + 9 = -9.486832981 Simplifying x + 9 = -9.486832981 Reorder the terms: 9 + x = -9.486832981 Solving 9 + x = -9.486832981 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = -9.486832981 + -9 Combine like terms: 9 + -9 = 0 0 + x = -9.486832981 + -9 x = -9.486832981 + -9 Combine like terms: -9.486832981 + -9 = -18.486832981 x = -18.486832981 Simplifying x = -18.486832981Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.486832981, -18.486832981}
| 64r^2+128r-57= | | y^2-7y-44= | | 6x=5x-9 | | x^4+8x=y | | 3z=12-z | | -x^2+20x-91= | | -10=-12+0.57n | | .75x=16 | | 6p^4-32p^3+5p^2=0 | | 2x^3-19x^2=-9x | | 2(4t-1)+t=8-1 | | 5x^2+3x+10=0 | | 21x^2-10x-16= | | 11-3(a-1)=2+9 | | 11+78x+7x^2=0 | | 16y^2+48u+27=0 | | 11x-3=5x-4(1-2x) | | 2x+6/5=4 | | 49m+25m+49m= | | -18=4x-19 | | -6y+4=-2(4y+6) | | 14y^2-4y+3=0 | | 17x-9=12x+4 | | -3x^2-x+4=0 | | (4-x)=-11 | | x+3x^2-2= | | 3w^2+10w=-3 | | -21-(-53)+(-33)-51= | | x-26-8x=4(2-x) | | 0.625a-27=-7 | | 17=-8+(25) | | 7x^2+35x-42=0 |