If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (-2x2) + -3x + 15 = 0 Reorder the terms: 15 + -3x + (-2x2) = 0 Solving 15 + -3x + (-2x2) = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -7.5 + 1.5x + x2 = 0 Move the constant term to the right: Add '7.5' to each side of the equation. -7.5 + 1.5x + 7.5 + x2 = 0 + 7.5 Reorder the terms: -7.5 + 7.5 + 1.5x + x2 = 0 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + 1.5x + x2 = 0 + 7.5 1.5x + x2 = 0 + 7.5 Combine like terms: 0 + 7.5 = 7.5 1.5x + x2 = 7.5 The x term is 1.5x. Take half its coefficient (0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. 1.5x + 0.5625 + x2 = 7.5 + 0.5625 Reorder the terms: 0.5625 + 1.5x + x2 = 7.5 + 0.5625 Combine like terms: 7.5 + 0.5625 = 8.0625 0.5625 + 1.5x + x2 = 8.0625 Factor a perfect square on the left side: ((x) + 0.75)((x) + 0.75) = 8.0625 Calculate the square root of the right side: 2.839454173 Break this problem into two subproblems by setting ((x) + 0.75) equal to 2.839454173 and -2.839454173.Subproblem 1
(x) + 0.75 = 2.839454173 Simplifying (x) + 0.75 = 2.839454173 x + 0.75 = 2.839454173 Reorder the terms: 0.75 + x = 2.839454173 Solving 0.75 + x = 2.839454173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 2.839454173 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 2.839454173 + -0.75 x = 2.839454173 + -0.75 Combine like terms: 2.839454173 + -0.75 = 2.089454173 x = 2.089454173 Simplifying x = 2.089454173Subproblem 2
(x) + 0.75 = -2.839454173 Simplifying (x) + 0.75 = -2.839454173 x + 0.75 = -2.839454173 Reorder the terms: 0.75 + x = -2.839454173 Solving 0.75 + x = -2.839454173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -2.839454173 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -2.839454173 + -0.75 x = -2.839454173 + -0.75 Combine like terms: -2.839454173 + -0.75 = -3.589454173 x = -3.589454173 Simplifying x = -3.589454173Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.089454173, -3.589454173}
| x^4+8x^2+1= | | 31-3x=9 | | 1.7(3h-4)=6(3.4k-2) | | 4a^2-20a+24= | | (-2x^2)+9x+15=0 | | 18a^2+10a=16k+4 | | 5m+6=3m+30 | | -13+4d=31 | | 10x^3-24x^2-20x+78=0 | | 7-5u=-38 | | 25a^2-10a+1= | | 3h+4=5 | | 11+5=12 | | -7+12=-9 | | -7-13=-2 | | 10-16v=4 | | 4+3x=-2 | | -13=-2 | | b(b+5)=0 | | 6x+11=x+6 | | 3u-4=2u+12 | | 6+y=14 | | -5+2x=1 | | (2+4i)(-4-1i)= | | 0.75y=126 | | w(18-w)(2w+4)=1152 | | 30w+60=27 | | 6r+r=1 | | 2a^2+9=11a | | 8n^2+24n+10=0 | | 7x+y=-12 | | -11+5w+7=-4w-37-2w |