What are the solutions to the equation 28x^3-84x^2=0 ?

The solutions to the equation 28x^3-84x^2=0 are x=0,x=3

Find the zeros of 28x^3-84x^2=0

The zeros of 28x^3-84x^2=0 are x=0,x=3

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28 x^{3} - 84 x^{2} = 0

x = 0, x = 3

Solution steps

28 x^{3} - 84 x^{2} = 0

Factor

28 x^{3} - 84 x^{2} : 28 x^{2} (x - 3)

28 x^{2} (x - 3) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x = 0 or x - 3 = 0

Solve

x - 3 = 0 : x = 3

The solutions are

x = 0, x = 3

x^{6} + 2 x^{3} - 3 = 0

4 x^{3} + 30 x^{2} + 70 x + 50 = 0

x^{4} - 3 x^{2} - 2 x = 0

6 x (x^{2} - 1) = 0

x^{4} - 3 x^{2} + 9 = 0

What are the solutions to the equation 28x^3-84x^2=0 ?
The solutions to the equation 28x^3-84x^2=0 are x=0,x=3
Find the zeros of 28x^3-84x^2=0
The zeros of 28x^3-84x^2=0 are x=0,x=3