If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying w2 + -9w + -21 = 0 Reorder the terms: -21 + -9w + w2 = 0 Solving -21 + -9w + w2 = 0 Solving for variable 'w'. Begin completing the square. Move the constant term to the right: Add '21' to each side of the equation. -21 + -9w + 21 + w2 = 0 + 21 Reorder the terms: -21 + 21 + -9w + w2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + -9w + w2 = 0 + 21 -9w + w2 = 0 + 21 Combine like terms: 0 + 21 = 21 -9w + w2 = 21 The w term is -9w. 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. -9w + 20.25 + w2 = 21 + 20.25 Reorder the terms: 20.25 + -9w + w2 = 21 + 20.25 Combine like terms: 21 + 20.25 = 41.25 20.25 + -9w + w2 = 41.25 Factor a perfect square on the left side: (w + -4.5)(w + -4.5) = 41.25 Calculate the square root of the right side: 6.422616289 Break this problem into two subproblems by setting (w + -4.5) equal to 6.422616289 and -6.422616289.Subproblem 1
w + -4.5 = 6.422616289 Simplifying w + -4.5 = 6.422616289 Reorder the terms: -4.5 + w = 6.422616289 Solving -4.5 + w = 6.422616289 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + w = 6.422616289 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + w = 6.422616289 + 4.5 w = 6.422616289 + 4.5 Combine like terms: 6.422616289 + 4.5 = 10.922616289 w = 10.922616289 Simplifying w = 10.922616289Subproblem 2
w + -4.5 = -6.422616289 Simplifying w + -4.5 = -6.422616289 Reorder the terms: -4.5 + w = -6.422616289 Solving -4.5 + w = -6.422616289 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + w = -6.422616289 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + w = -6.422616289 + 4.5 w = -6.422616289 + 4.5 Combine like terms: -6.422616289 + 4.5 = -1.922616289 w = -1.922616289 Simplifying w = -1.922616289Solution
The solution to the problem is based on the solutions from the subproblems. w = {10.922616289, -1.922616289}
| 4(a-1)=2 | | X=46+90 | | 9/12=×/20 | | 4-5b-3-2b= | | 7(5x+4)=77 | | 5x+20=10x-2 | | 3.2x=.32 | | -3(x-2)=5x-8x+9 | | ln3/4 | | 7-10x-x-4=2 | | 325=3x-185 | | 2d+12=9d-9 | | 2d+12=9d-1 | | P-320=2813 | | 4x-2x+6=2(x+4)-2 | | 0.8x+0.6=1.4x+1.8 | | P-322=2820 | | 8+3+4y-6y= | | a+b-7a-8b= | | 2x^2-8x+16=11 | | ex=14.1 | | 2x+11=3x-39 | | 5x-4=9y+5 | | 3x+25=79 | | 8+x=6x-5(x+3) | | -y+275=110 | | 12x^2-30x+6=0 | | 2x+14y=-3 | | -8m-3=13 | | (5-3)/(-2)*(-1) | | .8y=3.20 | | 1/8×5x |