What are the solutions to the equation f^2-21f=0 ?

The solutions to the equation f^2-21f=0 are f=21,f=0

Find the zeros of f^2-21f=0

The zeros of f^2-21f=0 are f=21,f=0

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f^{2} - 21 f = 0

f = 21, f = 0

Solution steps

f^{2} - 21 f = 0

Solve with the quadratic formula

f_{1, 2} = \frac{- ( - 21 ) \pm ( - 21 ) ^{2} - 4 \cdot 1 \cdot 0}{2 \cdot 1}

(- 21)^{2} - 4 \cdot 1 \cdot 0 = 21

f_{1, 2} = \frac{- ( - 21 ) \pm 21}{2 \cdot 1}

Separate the solutions

f_{1} = \frac{- ( - 21 ) + 21}{2 \cdot 1}, f_{2} = \frac{- ( - 21 ) - 21}{2 \cdot 1}

f = \frac{- ( - 21 ) + 21}{2 \cdot 1} : 21

f = \frac{- ( - 21 ) - 21}{2 \cdot 1} : 0

The solutions to the quadratic equation are:

f = 21, f = 0

(6.626 \cdot 1 0^{- 34}) (3 \cdot 1 0^{8})

6 x - 4 + 2 (5 x + 2) = 16 x

x \leq 6 - 2 x^{2}

12 x - 4 > 7 + 11

y^{2} - x y - 56 x^{2}

What are the solutions to the equation f^2-21f=0 ?
The solutions to the equation f^2-21f=0 are f=21,f=0
Find the zeros of f^2-21f=0
The zeros of f^2-21f=0 are f=21,f=0