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4 years ago

For which values of x does 2x^2=10x?

Mathematics

2 answers:

dalvyx [7]4 years ago

8 0

Answer:

The values of x for which it is true that $2x^2=10x$ are:

$x = 0$ and $x = 5$

Step-by-step explanation:

We have the following equation

$2x^2=10x$

To solve the equation subtract 10x on both sides of the equation

$2x^2-10x=10x-10x$

$2x^2-10x=0$

Now take the variable x as a common factor

$2x(x-5)=0$

Then the equation is equal to 0 when x = 0 or when x = 5

$x = 0$ and $x = 5$

Sphinxa [80]4 years ago

7 0

Answer:

x = 0; x = 5

Step-by-step explanation:

2x² = 10x

2x² - 10x = 0

2x(x - 5) = 0

x = 0; x = 5

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Answer:

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3 years ago

F(x) = 17 - 2x<br> Find f(a + 7)

Fudgin [204]

Answer:

-2a + 3

Step-by-step explanation:

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4 0

3 years ago

Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated

Illusion [34]

Answer:

$x=-2,0,3$

Step-by-step explanation:

We have been given a function $f(x)=15x^3-15x^2-90x$ . We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

$15x^3-15x^2-90x=0$

Now, we will factor our equation. We can see that all terms of our equation a common factor that is $15x$ .

Upon factoring out $15x$ , we will get:

$15x(x^2-x-6)=0$

Now, we will split the middle term of our equation into parts, whose sum is $-1$ and whose product is $-6$ . We know such two numbers are $-3\text{ and }2$ .