What is the value of X below?

Question

If x² = 3x

Then what is x?

Comments

To solve your equation it would be like this:

1. Move all terms to the left side and set equal to zero.
2. Now set each of your factors equal to zero.l

Your answer will be:

x = 0,3

Answer 1

X²=3x

Therefore,

X²-3x=0

By moving all factors to the left.

Now for each factor being equal to zero.

 
1. X²=0

Square becomes square root when crossing the equality sign to make X the subject of formula.

X=√0

X=0

2. -3x=0

X=3

By making X the subject of formula. 

When the negative sign crosses the equality sign, it becomes positive. 

So x=0,3

This reminds me so much about solving problems back in secondary school. I didn't like solving problems at all. I was just an average student when it came to that. I never enjoyed it and I only read to pass. I wouldn't even practice them until it was time for examination. 

Answer 2

What you are asking are the "roots" of the equation x² = 3x. Remember that the equation that will allow us to get the root/s is the quadratic equation given by ax² + bx + c = 0.

In this case, you need to rewrite the equation from x² = 3x by moving all terms to the left. This will then give you the form x² -3x = 0, which will allow us to identify a, b and c of the quadratic equation.

a = 1
b = -3
c = 0

We now substitute this to the quadratic formula: 

x= [−b±√b²−4ac]/2a

Substituting the values will give you this:

x= [−(-3)±√(-3)²−4(1)(0)]/2(1)

x= [3±√9]/2

x= [3±3]/2

First root:

x= [3+3]/2 = 6/2 = 3

Second root:

x= [3-3]/2 = 0

Hence, the values of x or the roots of the equation are 3 and 0.

Answer 3

x^2 =3x

re setting the equation

x^2 -3x =0

factorizing left side

x (x-3) =0

we have two factors on left side x  and x-3 each must be zero

so x=0   first factor

and x-3 =0   second factor

or x=3
we find two answers  x=0    and   x=3

Answer 4

X^2 =3X

X^2 - 3X=0

X(X-3)=0

Either

X=0,

Or

X-3=0

X=3

We can also solve by making quadratic equation ax^2 +bx+c=0

And solve for the quadratic equation
Here c is zero

Answer 5

We are given:

x^2 = 3x

By taking 3x to the left-hand side of the equation, we have:

x^2 - 3x = 0 

Now:

We can see that in the given equation, two terms are there. One is x and another is 3x.

Among these two terms, x is a common factor. 

By taking x as a common from both terms, we have:

x(x-3) = 0

So:

x = 0

And:

x - 3 = 0 

=> x = 3

Hence:

The values of x are 0 and 3

Answer 6

As the given equation is a quadratic equation.

So the number of roots for the equation are 2. 

x² = 3x 

Re shifting the equation,

x² - 3x = 0 

Taking x common, 

x(x - 3) = 0

Therefore, equating the above with 0;

x = 0 and x - 3 = 0 ==> x = 3  

Hence, x = 0, 3

Answer 7

x^2 = 3x

Moving 3x to left side we get

x^2 - 3x=0 

Taking x outside

=> x(x-3)= 0

Therefore there are two values for x

They are 3 & 0.

Answer 8

x^2 = 3x

1. Move all terms left side and make it zero

x^2 - 3x = 0

x(x-3) = 0

2. Set each factors to zero.

 x= 0 and x-3 = 0

Therefor x = 0 and 3.

Answer 9

First of all,  there will be two values of x as the power of x is 2.

To solve : X^2 =3X

Move 3x to the left hand side,

x^2 - 3x = 0

Take x common from both the terms,

x(x-3) =0

Equate both the factors to zero,

Either,      x=0

Or,     x - 3 = 0 

        Therfore, x =3

Hence the two values of x is 0 and 3.

Answer 10

If x²= 3x.

To solve for x.

Take the log₁₀ of both sides.

We have 

Log₁₀x = log₁₀3x

2log₁₀x = log₁₀3 + log₁₀x

Collect like terms

We have 

2log₁₀x - log₁₀x = log₁₀3

log₁₀x = log₁₀3

Take inverse log₁₀ of both sides

Therefore x= 3.

 Since x² = 3x is quadratic equation, there should be 2 values for x .

So the other answer is 0.

Answer 11

Answer x= 0 and x= 3

Solving is = first make your equation like this 

x^2-3x=0

Then you factorize the equation.

Like this, x(x-3)=0

After factorizing make x=0

And them make x-3=0 

So making x=3 and x=0 ✅

Answer 12

x^2=3x

This is the question
x^2-3x=0
bringing 3x from right to left
x(x-3)=0
taking x as common
x^2-3x=0
x*x and x*3
x-3=0
cutting x from x^2
x=3
taking 3 from right to left

Thats it

Answer 13

x = √3 

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