Solve 56=16-9b^4b

Evaluate

56 = 16 - 9 b^{4} \times b

Multiply

More Steps

56 = 16 - 9 b^{5}

Swap the sides of the equation

16 - 9 b^{5} = 56

Move the constant to the right-hand side and change its sign

- 9 b^{5} = 56 - 16

Subtract the numbers

- 9 b^{5} = 40

Change the signs on both sides of the equation

9 b^{5} = - 40

Divide both sides

\frac{9 b ^{5}}{9} = \frac{- 40}{9}

Divide the numbers

b^{5} = \frac{- 40}{9}

Use \frac{- a}{b} = \frac{a}{- b} = - \frac{a}{b} to rewrite the fraction

b^{5} = - \frac{40}{9}

Take the 5 -th root on both sides of the equation

5 b^{5} = 5 - \frac{40}{9}

Calculate

b = 5 - \frac{40}{9}

Solution

More Steps

b = - \frac{5 1080}{3}

Alternative Form

b \approx - 1.347608

Solve the equation