If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x(x + 9) = 15 Reorder the terms: 2x(9 + x) = 15 (9 * 2x + x * 2x) = 15 (18x + 2x2) = 15 Solving 18x + 2x2 = 15 Solving for variable 'x'. Reorder the terms: -15 + 18x + 2x2 = 15 + -15 Combine like terms: 15 + -15 = 0 -15 + 18x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -7.5 + 9x + x2 = 0 Move the constant term to the right: Add '7.5' to each side of the equation. -7.5 + 9x + 7.5 + x2 = 0 + 7.5 Reorder the terms: -7.5 + 7.5 + 9x + x2 = 0 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + 9x + x2 = 0 + 7.5 9x + x2 = 0 + 7.5 Combine like terms: 0 + 7.5 = 7.5 9x + x2 = 7.5 The x term is 9x. 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. 9x + 20.25 + x2 = 7.5 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 7.5 + 20.25 Combine like terms: 7.5 + 20.25 = 27.75 20.25 + 9x + x2 = 27.75 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 27.75 Calculate the square root of the right side: 5.267826876 Break this problem into two subproblems by setting (x + 4.5) equal to 5.267826876 and -5.267826876.Subproblem 1
x + 4.5 = 5.267826876 Simplifying x + 4.5 = 5.267826876 Reorder the terms: 4.5 + x = 5.267826876 Solving 4.5 + x = 5.267826876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 5.267826876 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 5.267826876 + -4.5 x = 5.267826876 + -4.5 Combine like terms: 5.267826876 + -4.5 = 0.767826876 x = 0.767826876 Simplifying x = 0.767826876Subproblem 2
x + 4.5 = -5.267826876 Simplifying x + 4.5 = -5.267826876 Reorder the terms: 4.5 + x = -5.267826876 Solving 4.5 + x = -5.267826876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -5.267826876 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -5.267826876 + -4.5 x = -5.267826876 + -4.5 Combine like terms: -5.267826876 + -4.5 = -9.767826876 x = -9.767826876 Simplifying x = -9.767826876Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.767826876, -9.767826876}
| x-8=.5x+7 | | 3(5+z)=39 | | 9(2k+3)=-9 | | -7(8-8+7v)= | | 6p-(5p+5)=-8-2(p+5) | | 9a-3b+c= | | 4x+16y=80 | | 1.25=1+r | | 6(2x+3)-10=5 | | n/9=2/3 | | 10=120/x | | 9m-3(m+6)=0 | | 4-2x-9+x=4 | | 15y^2-20y=0 | | 2(-8-2+2v+6v)= | | 2.5x+3.6=14.85 | | -8+9x=13-5x | | 15-7=21 | | 80+10x=14 | | 9j+11=-277 | | -8+9x=13-5 | | sin(x)=1.5 | | 5p-3-p= | | 11=-4+x | | 3=12/x | | 9-3(x-3)+2x=6 | | 90x+7x-6=180 | | 31x-41x=-48 | | 10x+80=14 | | 17-3k=7(8k+4) | | 2x+3+x=36 | | 160g=24 |