If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -0.5x2 + 9x + 20 = 0 Reorder the terms: 20 + 9x + -0.5x2 = 0 Solving 20 + 9x + -0.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.5 the coefficient of the squared term: Divide each side by '-0.5'. -40 + -18x + x2 = 0 Move the constant term to the right: Add '40' to each side of the equation. -40 + -18x + 40 + x2 = 0 + 40 Reorder the terms: -40 + 40 + -18x + x2 = 0 + 40 Combine like terms: -40 + 40 = 0 0 + -18x + x2 = 0 + 40 -18x + x2 = 0 + 40 Combine like terms: 0 + 40 = 40 -18x + x2 = 40 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 = 40 + 81 Reorder the terms: 81 + -18x + x2 = 40 + 81 Combine like terms: 40 + 81 = 121 81 + -18x + x2 = 121 Factor a perfect square on the left side: (x + -9)(x + -9) = 121 Calculate the square root of the right side: 11 Break this problem into two subproblems by setting (x + -9) equal to 11 and -11.Subproblem 1
x + -9 = 11 Simplifying x + -9 = 11 Reorder the terms: -9 + x = 11 Solving -9 + x = 11 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 = 11 + 9 Combine like terms: -9 + 9 = 0 0 + x = 11 + 9 x = 11 + 9 Combine like terms: 11 + 9 = 20 x = 20 Simplifying x = 20Subproblem 2
x + -9 = -11 Simplifying x + -9 = -11 Reorder the terms: -9 + x = -11 Solving -9 + x = -11 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 = -11 + 9 Combine like terms: -9 + 9 = 0 0 + x = -11 + 9 x = -11 + 9 Combine like terms: -11 + 9 = -2 x = -2 Simplifying x = -2Solution
The solution to the problem is based on the solutions from the subproblems. x = {20, -2}
| 8b-7=7+30 | | 4x+5y+2=90 | | 5b-7=1-3b | | -7x+5=-30 | | 5x+40=3x+34 | | f(2)=2*2(2+1) | | 4x+41=6-x | | 6n-1=4n-1 | | 16=-8(1+8k)-3(-7k-8) | | (X-(-4+3i))(x-(-4-3i))=0 | | 3+2q=7 | | 3m+y=5+5 | | 2x^4-102x^2=-196 | | -7x-2=51 | | 7x-21=5x-13 | | x^2+16-3=0 | | 180=x+(x-48) | | -5+4x+4= | | 1+3d=4 | | 4x^2+32x+62=0 | | -4-3(2x+1)+2x=13 | | 56x^4y^3-42x^2y^6= | | 2(3x-4-10)=5(x+4) | | (2x+4)+(2x+3)+2x=p | | 3x+3+4x= | | a=15-31 | | 2(12x+16y)+5(3y+4z)+7(6x-3y-2z)= | | 3x+0.5x=14 | | -2y=10x-8 | | [2x+7]=4 | | 0.30x+0.15(140)=0.15(54) | | 112=-7x+7(-4x-17) |