If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 2.5x + -9 = 0 Reorder the terms: -9 + 2.5x + x2 = 0 Solving -9 + 2.5x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + 2.5x + 9 + x2 = 0 + 9 Reorder the terms: -9 + 9 + 2.5x + x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 2.5x + x2 = 0 + 9 2.5x + x2 = 0 + 9 Combine like terms: 0 + 9 = 9 2.5x + x2 = 9 The x term is 2.5x. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5x + 1.5625 + x2 = 9 + 1.5625 Reorder the terms: 1.5625 + 2.5x + x2 = 9 + 1.5625 Combine like terms: 9 + 1.5625 = 10.5625 1.5625 + 2.5x + x2 = 10.5625 Factor a perfect square on the left side: (x + 1.25)(x + 1.25) = 10.5625 Calculate the square root of the right side: 3.25 Break this problem into two subproblems by setting (x + 1.25) equal to 3.25 and -3.25.Subproblem 1
x + 1.25 = 3.25 Simplifying x + 1.25 = 3.25 Reorder the terms: 1.25 + x = 3.25 Solving 1.25 + x = 3.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 3.25 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 3.25 + -1.25 x = 3.25 + -1.25 Combine like terms: 3.25 + -1.25 = 2 x = 2 Simplifying x = 2Subproblem 2
x + 1.25 = -3.25 Simplifying x + 1.25 = -3.25 Reorder the terms: 1.25 + x = -3.25 Solving 1.25 + x = -3.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -3.25 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -3.25 + -1.25 x = -3.25 + -1.25 Combine like terms: -3.25 + -1.25 = -4.5 x = -4.5 Simplifying x = -4.5Solution
The solution to the problem is based on the solutions from the subproblems. x = {2, -4.5}
| 2+2+2-2=4 | | 9y^4-15y^3=0 | | -9/5*4/15 | | 8(2x+2)2=288 | | 2y+5x=2 | | 3y^2-6y+5y^2-4y= | | 2x(4w+9)-3y(4w+9)= | | 5s+3t=4 | | 3r^2+17r=-10 | | x^2+4x+4=2x^2+2x-20 | | -1+a=a-3 | | 4x-10+3x+7=180 | | 5b-7= | | 3x-2=7x | | 8w^3-30w^2-8w=0 | | -14+7x=5x-4 | | 6b-3= | | 3a-10= | | 95+8x=119+5x | | 26x-15=8x^2 | | 8+7=3x | | 5y+20x-40=0 | | -95=5(-4n-1)+2n | | (6xy^7+cosy)dx+(2kx^2y^7-1-xsiny)dy=0 | | 9(x-22)=55-11(x+5) | | 8(2-8k)=336 | | 64=4 | | 2x+(2x-8)=4 | | 64n=4 | | 63/60 | | 5x-9x+2=x-6-8 | | n+2n-18=n |