If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4x4 + 4x2 + 21 = 0 Reorder the terms: 21 + 4x2 + -4x4 = 0 Solving 21 + 4x2 + -4x4 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -5.25 + -1x2 + x4 = 0 Move the constant term to the right: Add '5.25' to each side of the equation. -5.25 + -1x2 + 5.25 + x4 = 0 + 5.25 Reorder the terms: -5.25 + 5.25 + -1x2 + x4 = 0 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + -1x2 + x4 = 0 + 5.25 -1x2 + x4 = 0 + 5.25 Combine like terms: 0 + 5.25 = 5.25 -1x2 + x4 = 5.25 The x term is -1x2. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x2 + 0.25 + x4 = 5.25 + 0.25 Reorder the terms: 0.25 + -1x2 + x4 = 5.25 + 0.25 Combine like terms: 5.25 + 0.25 = 5.5 0.25 + -1x2 + x4 = 5.5 Factor a perfect square on the left side: (x2 + -0.5)(x2 + -0.5) = 5.5 Calculate the square root of the right side: 2.34520788 Break this problem into two subproblems by setting (x2 + -0.5) equal to 2.34520788 and -2.34520788.Subproblem 1
x2 + -0.5 = 2.34520788 Simplifying x2 + -0.5 = 2.34520788 Reorder the terms: -0.5 + x2 = 2.34520788 Solving -0.5 + x2 = 2.34520788 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x2 = 2.34520788 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x2 = 2.34520788 + 0.5 x2 = 2.34520788 + 0.5 Combine like terms: 2.34520788 + 0.5 = 2.84520788 x2 = 2.84520788 Simplifying x2 = 2.84520788 Take the square root of each side: x = {-1.686774401, 1.686774401}Subproblem 2
x2 + -0.5 = -2.34520788 Simplifying x2 + -0.5 = -2.34520788 Reorder the terms: -0.5 + x2 = -2.34520788 Solving -0.5 + x2 = -2.34520788 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x2 = -2.34520788 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x2 = -2.34520788 + 0.5 x2 = -2.34520788 + 0.5 Combine like terms: -2.34520788 + 0.5 = -1.84520788 x2 = -1.84520788 Simplifying x2 = -1.84520788 Reorder the terms: 1.84520788 + x2 = -1.84520788 + 1.84520788 Combine like terms: -1.84520788 + 1.84520788 = 0.00000000 1.84520788 + x2 = 0.00000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| x*x+4=16 | | 15-10y=3-4y | | 10.00h+15.00=95 | | -1x+-10+(x+5)=-2x-15 | | c+1/2=c | | -x-10-(x+5)=-2x-15 | | 3(u-3)=4(4+3) | | 5(2x-4)+1=-11 | | -4x+11=-29 | | 13.75x=17 | | o-26/3=4/3 | | -94=(1-6k) | | 8(x+1)+8x+3=16x+80 | | 6a=3(3a-[a+(4a-5)])+5 | | 10.00h-15.00=10 | | A+4.8=1.4 | | -4x^4-20x^2+24=0 | | 2000+25x=4750. | | y=2.4x+6 | | -115=5(1-6b) | | 2x+54=3x+50 | | 4x(3x+6)=-9 | | 2000+25x=0. | | -96=n-46 | | 3(2x+4X)-5=15+x | | 69.00+p=70.10 | | 8p+3=9+6p | | (2x^3-9x^2+8)-(8-9x^2+2x^3)= | | 15w^2+1w-6=0 | | 3*5*6= | | 8-4y=-16 | | 5(2x-4)+1=11 |