All categories

4 years ago

How to factorize a)x³-4x b) 9t²-u² hurry up

Mathematics

2 answers:

Bas_tet [7]4 years ago

7 0

A) the greatest common factor is how to factors something

for this case x is the gcf

x(x^2 - 4) is the answer

B) Cannot be factored there is no common factor.

Nesterboy [21]4 years ago

6 0

A) gcf is x

x(x^3/x - 4x/x)
x(x^2 - 4)
x(x^2 - 2^2)
x(x+2)(x-2)

b) 3t^2 -u^2

(3t+u)(3t-u)

You might be interested in

What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4?

Vera_Pavlovna [14]

Answer:

-80

Step-by-step explanation:

2x^2 + 3xy - 4y^2

x = 2 | y = - 4

2(2)^2 + 3(2)(-4) - 4(-4)^2

2 * 4 + 3(2)(-4) - 4 * 16

8 - 24 - 64

-80

5 0

3 years ago

All of the following phrases represent the same value except _____. the opposite of 12 the absolute value of -12 the distance be

tangare [24]

Opposite of 12 is -12

absolute value of -12 is 12

distance between 0 and -12 is 12

absolute value of 12 is 12

A

3 0

3 years ago

Read 2 more answers

What value of x <br> in the solution set of 2(3x – 1) ≥ 4x – 6?

Brrunno [24]

First, you must distribute 2(3x-1).
To do that, you will multiply 2•3x, and 2•-1 because you are taking the number outside of the parentheses and multiplying (distributing) it to all the numbers inside

After distributing, the left side of your inequality will be 6x-2

Now you have
$6x - 2 \geqslant 4x - 6$

To find the value of x, you must subtract an x value from both sides of the equation, as well as a constant from each side.

so you have
$6x - 2 \geqslant 4x - 6 \\ - 6x \geqslant + 6$
And that will make the equation
$- 4 \geqslant - 2x$
Now, divide the variable side, ***BUT, because you are dividing by a negative number in an inequality, the inequality will switch sides.

Then, the value of x is greater than or equal to 2

5 0

3 years ago

Read 2 more answers

Could someone please help answer this, thank you, will give brainliest, please no spam, Homework help!

Zinaida [17]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Here's the solution :

slope of the line is equal to :

$\dfrac{y_2 - y_1}{x_2 - x_1}$

$\dfrac{4 - 1}{0 - ( - 1)}$

$\dfrac{3}{1}$

slope of given line = 3

7 0

3 years ago

Read 2 more answers

Kelly has a rock garden with a length of 6 feet. She constructs a scale model of the rock garden using the scale 1 inch:2 feet.

melamori03 [73]

Answer:

Part a) 3 inches

Part b) Yes, her scale model drawing will fit on the piece of paper 8.5 by 7 inches

Step-by-step explanation:

we know that

The scale drawing is

$1\ inch:2\ feet$

That means

1 inch in the model represent 2 feet in the actual

Part a) What is the length of the garden in her model?

we know that

The length of the garden is 6 feet in the actual

Find out the length of the garden in her model, using proportion

$\frac{1}{2}\ \frac{in}{ft}=\frac{x}{6}\ \frac{in}{ft}\\\\x=6/2\\\\x=3\ in$

Part b) If the width is 5 inches for the scale model and the scale is still 1 inch to 2 feet, will her scale model drawing fit on a piece of paper that is 8.5 inches by 7 inches? Why or why not?

we know that

The model width is described as 5 inches. Both the 3-inch length and the 5-inch width are less than the 8.5 inch and 7 inch dimensions of the paper Kelly is using.

therefore

She can easily draw her model on that size paper.

7 0

4 years ago