If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -13 = -4x Reorder the terms: -13 + x2 = -4x Solving -13 + x2 = -4x Solving for variable 'x'. Reorder the terms: -13 + 4x + x2 = -4x + 4x Combine like terms: -4x + 4x = 0 -13 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '13' to each side of the equation. -13 + 4x + 13 + x2 = 0 + 13 Reorder the terms: -13 + 13 + 4x + x2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + 4x + x2 = 0 + 13 4x + x2 = 0 + 13 Combine like terms: 0 + 13 = 13 4x + x2 = 13 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 13 + 4 Reorder the terms: 4 + 4x + x2 = 13 + 4 Combine like terms: 13 + 4 = 17 4 + 4x + x2 = 17 Factor a perfect square on the left side: (x + 2)(x + 2) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (x + 2) equal to 4.123105626 and -4.123105626.Subproblem 1
x + 2 = 4.123105626 Simplifying x + 2 = 4.123105626 Reorder the terms: 2 + x = 4.123105626 Solving 2 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 4.123105626 + -2 Combine like terms: 2 + -2 = 0 0 + x = 4.123105626 + -2 x = 4.123105626 + -2 Combine like terms: 4.123105626 + -2 = 2.123105626 x = 2.123105626 Simplifying x = 2.123105626Subproblem 2
x + 2 = -4.123105626 Simplifying x + 2 = -4.123105626 Reorder the terms: 2 + x = -4.123105626 Solving 2 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -4.123105626 + -2 Combine like terms: 2 + -2 = 0 0 + x = -4.123105626 + -2 x = -4.123105626 + -2 Combine like terms: -4.123105626 + -2 = -6.123105626 x = -6.123105626 Simplifying x = -6.123105626Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.123105626, -6.123105626}
| 5.4x-4.2-7.3x=-2.5-1.9x-1.7 | | 12x^2+87=0 | | x^2+2x+2=36 | | 14x-44= | | x(2x-5)=42 | | -2(7u-2)+8u=4(u+2) | | [2](3x-4)=5 | | 4cos^2(x)-9=0 | | 2cosx-7cosx-4=0 | | 4(u-4)-6=-4(-4u+8)-8u | | 4xX+7=29 | | X-.05x=358400 | | 10x-5=6x-6 | | 1x+2=2x | | x/1.875x | | 2580+2920=x | | 2x-5+4x-19=180 | | 3x-1=9x | | 0.04/800 | | 1.5d-5=8 | | b-10+7b= | | 1=2/x | | 27/4=9/4x | | 1/5{s=2/3}-3/10s=-1/5 | | 550=660*(100/x) | | 6f= | | 4y-7+y+24=5y+20-3y | | 14+6x= | | 48=4k | | 3/5×1/3 | | (-5)+(-8)(-6)= | | Y=0.4x-8 |