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4 years ago

Is x^2-49 a difference of two squares?

1 answer:

4 0

Yes! To factor this, you would put it into expanded form: (x+7)(x-7). This is the only way to solve this and eliminate the x^1 term.

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Directions: Simplify each term by factoring.

zheka24 [161]

Answer/Step-by-step explanation:

[1] $3rs = 3 * r *s$

[2] $12xy = 2*2*3*x*y$

[3] $5x^2=5*x*x$

[4] $36x^2=2*2*3*3*x*x$

[5] $25^2=5*5*x*x$

[6] $30x^2=2*3*5*x*x$

[7] $5x^3=5*x*x*x$

[8] $24y^3=2*2*2*3*y*y*y$

[9] $9xy=3*3*x*y$

[10] $12x^4=2*2*3*x*x*x*x$

Factoring means to factor a number means to break it up into numbers that can be multiplied together to get the original number.

$[RevyBreeze]$

8 0

2 years ago

Rachel is 10 years older than her sister, Renee. In six years from now, the sum of their ages will be 40. How old is each girl?

Arisa [49]

Answer: I say the answer is 20 years old, 30 years old

Step-by-step explanation: If rachel is 10 years old than her sister in six years from now, the sum of their ages will be 40. So rachel is 10 years older than her sister so the younger sister has to be 20 years old and and rachel is 30 years old.

4 0

2 years ago

What would be the right answer to 71,526 + 262

iragen [17]

Answer:

71,788

Step-by-step explanation:

7 1 5 2 6

+ 2 6 2

____________

7 1 7 8 8

8 0

2 years ago

In Greg's that, he has $1$ yellow, $2$ red, and $3$ green tokens. One red token is equivalent to $7$ yellow tokens. One yellow t

vodka [1.7K]

Answer:

$48 green tokens

Step-by-step explanation:

please check the attached file for explanation

4 0

4 years ago

Read 2 more answers

Problem 4<br> 9x + 27 y = 45<br> The slope of the equation is..

Pani-rosa [81]

Answer:

Slope = -1/3

Step-by-step explanation:

9x + 27y = 45

Let's rearrange

Following the equation of a line

y = mx + c

y - intercept point y

x - intercept point x

m - slope of the line

c - intercept of the line

9x + 27y = 45

27y = 45 - 9x

27y = -9x + 45

Divide both sides by 27 , to make the y the subject of the formula

27y/27 = ( -9x + 45)/27

y = ( -9x + 45)/27

y = mx + c

We have to separate, so as to get the slope and also the intercept

y = ( -9x + 45)/27

y = -9x/27 + 45/27

We can simply further

y = -x/3 + 5/3

Therefore, the slope of the equation is -1/3

The intercept is 5/3

7 0

4 years ago