If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying u2 + -18u + 9 = 0 Reorder the terms: 9 + -18u + u2 = 0 Solving 9 + -18u + u2 = 0 Solving for variable 'u'. Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + -18u + -9 + u2 = 0 + -9 Reorder the terms: 9 + -9 + -18u + u2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -18u + u2 = 0 + -9 -18u + u2 = 0 + -9 Combine like terms: 0 + -9 = -9 -18u + u2 = -9 The u term is -18u. Take half its coefficient (-9). Square it (81) and add it to both sides. Add '81' to each side of the equation. -18u + 81 + u2 = -9 + 81 Reorder the terms: 81 + -18u + u2 = -9 + 81 Combine like terms: -9 + 81 = 72 81 + -18u + u2 = 72 Factor a perfect square on the left side: (u + -9)(u + -9) = 72 Calculate the square root of the right side: 8.485281374 Break this problem into two subproblems by setting (u + -9) equal to 8.485281374 and -8.485281374.Subproblem 1
u + -9 = 8.485281374 Simplifying u + -9 = 8.485281374 Reorder the terms: -9 + u = 8.485281374 Solving -9 + u = 8.485281374 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + u = 8.485281374 + 9 Combine like terms: -9 + 9 = 0 0 + u = 8.485281374 + 9 u = 8.485281374 + 9 Combine like terms: 8.485281374 + 9 = 17.485281374 u = 17.485281374 Simplifying u = 17.485281374Subproblem 2
u + -9 = -8.485281374 Simplifying u + -9 = -8.485281374 Reorder the terms: -9 + u = -8.485281374 Solving -9 + u = -8.485281374 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + u = -8.485281374 + 9 Combine like terms: -9 + 9 = 0 0 + u = -8.485281374 + 9 u = -8.485281374 + 9 Combine like terms: -8.485281374 + 9 = 0.514718626 u = 0.514718626 Simplifying u = 0.514718626Solution
The solution to the problem is based on the solutions from the subproblems. u = {17.485281374, 0.514718626}
| 230.16-37.384= | | 3x+3=3x+3 | | y^2+15y-54=0 | | 8f=3f+65 | | -6x-99=-x-9+x | | -7x+10=-6x | | w=3h | | 5x+56=2x-4 | | 145.6+84.56= | | w^2+30w-15=0 | | 5x-3x+x+8=2 | | -1(x+7)(x-4)=0 | | 87.92=3.14x^2+15.7x | | 3-z=5z-15 | | (x-5)(x+5)=56 | | 0=-12b | | -29x+17y=5 | | (7x+5)(7x+6)=0 | | 2x+4+x=2x+7 | | .70x+.3(45-x)=.45*80 | | -x^2+7x+18=0 | | w(w+11)=100 | | 10-4y=4 | | -5(x+3)(x+8)=0 | | x^2=x^2-9x+18 | | 3*5=x | | (3x-11)(6x+1)= | | x^2=11x-18 | | x+8=x+20 | | -4y^2+14y+8=0 | | x=x+12 | | 5x+99x=66 |