What are the solutions to the equation 3x^2=21x ?

The solutions to the equation 3x^2=21x are x=0,x=7

Find the zeros of 3x^2=21x

The zeros of 3x^2=21x are x=0,x=7

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3 x^{2} = 21 x

x = 0, x = 7

Solution steps

3 x^{2} = 21 x

Move

21 x

to the left side

3 x^{2} - 21 x = 0

Factor

3 x^{2} - 21 x : 3 x (x - 7)

3 x (x - 7) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x = 0 or x - 7 = 0

Solve

x - 7 = 0 : x = 7

The solutions to the quadratic equation are:

x = 0, x = 7

8 y - 9 y = 4

\frac{5}{7} \cdot \frac{3}{5} \cdot \frac{7}{11}

228

\frac{t}{4} + 19 \geq 18

(- 3 f)^{- 3}

What are the solutions to the equation 3x^2=21x ?
The solutions to the equation 3x^2=21x are x=0,x=7
Find the zeros of 3x^2=21x
The zeros of 3x^2=21x are x=0,x=7