9w^4-81w^2+153=0

Simple and best practice solution for 9w^4-81w^2+153=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 9w^4-81w^2+153=0 equation:


Simplifying
9w4 + -81w2 + 153 = 0

Reorder the terms:
153 + -81w2 + 9w4 = 0

Solving
153 + -81w2 + 9w4 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '9'.
9(17 + -9w2 + w4) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(17 + -9w2 + w4)' equal to zero and attempt to solve: Simplifying 17 + -9w2 + w4 = 0 Solving 17 + -9w2 + w4 = 0 Begin completing the square. Move the constant term to the right: Add '-17' to each side of the equation. 17 + -9w2 + -17 + w4 = 0 + -17 Reorder the terms: 17 + -17 + -9w2 + w4 = 0 + -17 Combine like terms: 17 + -17 = 0 0 + -9w2 + w4 = 0 + -17 -9w2 + w4 = 0 + -17 Combine like terms: 0 + -17 = -17 -9w2 + w4 = -17 The w term is -9w2. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9w2 + 20.25 + w4 = -17 + 20.25 Reorder the terms: 20.25 + -9w2 + w4 = -17 + 20.25 Combine like terms: -17 + 20.25 = 3.25 20.25 + -9w2 + w4 = 3.25 Factor a perfect square on the left side: (w2 + -4.5)(w2 + -4.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (w2 + -4.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

w2 + -4.5 = 1.802775638 Simplifying w2 + -4.5 = 1.802775638 Reorder the terms: -4.5 + w2 = 1.802775638 Solving -4.5 + w2 = 1.802775638 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + w2 = 1.802775638 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + w2 = 1.802775638 + 4.5 w2 = 1.802775638 + 4.5 Combine like terms: 1.802775638 + 4.5 = 6.302775638 w2 = 6.302775638 Simplifying w2 = 6.302775638 Take the square root of each side: w = {-2.510532939, 2.510532939}

Subproblem 2

w2 + -4.5 = -1.802775638 Simplifying w2 + -4.5 = -1.802775638 Reorder the terms: -4.5 + w2 = -1.802775638 Solving -4.5 + w2 = -1.802775638 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + w2 = -1.802775638 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + w2 = -1.802775638 + 4.5 w2 = -1.802775638 + 4.5 Combine like terms: -1.802775638 + 4.5 = 2.697224362 w2 = 2.697224362 Simplifying w2 = 2.697224362 Take the square root of each side: w = {-1.642322856, 1.642322856}

Solution

The solution to the problem is based on the solutions from the subproblems. w = {-2.510532939, 2.510532939, -1.642322856, 1.642322856}

Solution

w = {-2.510532939, 2.510532939, -1.642322856, 1.642322856}

See similar equations:

| 2-y/y+7=3/5 | | 4x-11=2x-1 | | 13(x-2)-(12x-13)+2(150+x)=314 | | 5x+6=5x-9 | | X^2+4y^2-6x+5=0 | | 11+11+11=11x | | 0.08x^3=1.2x^2 | | 9y-15=-23+7y | | x+(x*0.21)=500 | | x+(x*21)=500 | | 2(4x+4)=48 | | 2e^2x-2=0 | | x-39=5(2x+5)+8 | | 4=x(3x-11) | | 2x^3+13x^2-7x+6=0 | | y-1=1.5(x+3) | | 16-3y=37 | | 7p+8q=61 | | 5x-(2x+4-x)= | | 8x+5=26+5x | | 7x+3=13+5x | | tg(x)=0.08 | | x-5=-x+1 | | 12x+3=2x+40 | | ln(x)=ln(y)+c | | 20-5x=-4x+16 | | 9+2x=-1+4x | | 5x^4-9x^2-4=0 | | 48x-19-10x=19 | | 6+2x=10x+1 | | 904+543=x+412 | | 2sin^2(x)+3cos(2x)=0 |

Equations solver categories