16b^3+62b^2-72b=

Simple and best practice solution for 16b^3+62b^2-72b= 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 16b^3+62b^2-72b= equation:


Simplifying
16b3 + 62b2 + -72b = 0

Reorder the terms:
-72b + 62b2 + 16b3 = 0

Solving
-72b + 62b2 + 16b3 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '2b'.
2b(-36 + 31b + 8b2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'b' equal to zero and attempt to solve: Simplifying b = 0 Solving b = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b = 0

Subproblem 2

Set the factor '(-36 + 31b + 8b2)' equal to zero and attempt to solve: Simplifying -36 + 31b + 8b2 = 0 Solving -36 + 31b + 8b2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -4.5 + 3.875b + b2 = 0 Move the constant term to the right: Add '4.5' to each side of the equation. -4.5 + 3.875b + 4.5 + b2 = 0 + 4.5 Reorder the terms: -4.5 + 4.5 + 3.875b + b2 = 0 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + 3.875b + b2 = 0 + 4.5 3.875b + b2 = 0 + 4.5 Combine like terms: 0 + 4.5 = 4.5 3.875b + b2 = 4.5 The b term is 3.875b. Take half its coefficient (1.9375). Square it (3.75390625) and add it to both sides. Add '3.75390625' to each side of the equation. 3.875b + 3.75390625 + b2 = 4.5 + 3.75390625 Reorder the terms: 3.75390625 + 3.875b + b2 = 4.5 + 3.75390625 Combine like terms: 4.5 + 3.75390625 = 8.25390625 3.75390625 + 3.875b + b2 = 8.25390625 Factor a perfect square on the left side: (b + 1.9375)(b + 1.9375) = 8.25390625 Calculate the square root of the right side: 2.872961234 Break this problem into two subproblems by setting (b + 1.9375) equal to 2.872961234 and -2.872961234.

Subproblem 1

b + 1.9375 = 2.872961234 Simplifying b + 1.9375 = 2.872961234 Reorder the terms: 1.9375 + b = 2.872961234 Solving 1.9375 + b = 2.872961234 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1.9375' to each side of the equation. 1.9375 + -1.9375 + b = 2.872961234 + -1.9375 Combine like terms: 1.9375 + -1.9375 = 0.0000 0.0000 + b = 2.872961234 + -1.9375 b = 2.872961234 + -1.9375 Combine like terms: 2.872961234 + -1.9375 = 0.935461234 b = 0.935461234 Simplifying b = 0.935461234

Subproblem 2

b + 1.9375 = -2.872961234 Simplifying b + 1.9375 = -2.872961234 Reorder the terms: 1.9375 + b = -2.872961234 Solving 1.9375 + b = -2.872961234 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1.9375' to each side of the equation. 1.9375 + -1.9375 + b = -2.872961234 + -1.9375 Combine like terms: 1.9375 + -1.9375 = 0.0000 0.0000 + b = -2.872961234 + -1.9375 b = -2.872961234 + -1.9375 Combine like terms: -2.872961234 + -1.9375 = -4.810461234 b = -4.810461234 Simplifying b = -4.810461234

Solution

The solution to the problem is based on the solutions from the subproblems. b = {0.935461234, -4.810461234}

Solution

b = {0, 0.935461234, -4.810461234}

See similar equations:

| x^2+10x+8= | | 9x-5y-10y+7x+4= | | 25-8+4= | | 2/5x+8=20 | | 25+8-4= | | 2y^2-2y-12=0 | | [4b]-3=9 | | 27x-3y=-15 | | 11/3X=22/3 | | 1/6(3x-8)=1/21(6x-1) | | 5x+12=8x-18 | | y=7.66x+57.267 | | 21j^2-57jk-18k^2= | | [2t-3]=5 | | -5x+3x-6x=0 | | -5x+3x-6x=0 | | x^4-x+1=0 | | 5p+9=4p+11 | | N^4-2n^2+1= | | x(x+4)=3 | | 3x+2/10=2x-22/10 | | (3d+7)-d+5=2d+2 | | 5x-12=-92 | | 2n^4-2n^2+1= | | 2x-z=6b | | 3(4+a)-2=2(3a-1) | | x^2+7x-60= | | 2x-z+6b= | | 1/10(x-1)=1/30(x+1) | | N^4-2n+1= | | 1/12x^2y^5,1/30x^5y^3 | | 4m-1=3-2m+8m |

Equations solver categories