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Butoxors [25]
3 years ago
9

(3r - 3) (r+2)help plz​

Mathematics
1 answer:
suter [353]3 years ago
3 0

So this way we can do it. Thankyou!

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Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product w
andriy [413]
Greetings!

FOIL stands for:

F
ront
Outside
Inside
Last

This tells which terms to multiply when using the Distributive Property.
(NOTE: Only applicable with 2-term Polynomials)

For Example:
(a+b)(a-b)

Multiply the Fronts of both Equations:
(a*a)

Multiply the Outsides of both Equations:
(a*a)+(a*-b)

Multiply the Insides of both Equations:
(a*a)+(a*-b)+(b*a)

Multiply the Lasts of both Equations:
(a*a)+(a*-b)+(b*a)+(b*-b)

Simplify.
=a^2-ab+ba-b^2

=a^2-b^2


Alternative Method (My Prefered Method)
(a+b)(a-b)=a(a+b)-b(a+b)

Use Regular Distributive Property.
a(a+b)-b(a+b)

a*a+a*b-b*a+-b*b

Simplify.
a^2+ab-ba+-b^2

a^2-b^2

Hope this helps.
-Benjamin
6 0
3 years ago
Read 2 more answers
A small cone has a diameter of 6 cm and a height of 7 cm. A large cone has a diameter of 12 cm and a height of 9 cm. What is the
grandymaker [24]

Answer:

Solution in photo

Step-by-step explanation:

6 0
3 years ago
Which national park is situated in free state​
qaws [65]

Answer:

Golden Gate Highlands National Park

3 0
3 years ago
Read 2 more answers
Options are A. 17 B. 50 C. 19 D.21
ad-work [718]

Answer:

C. 19

Step-by-step explanation:

BD = DC because angles ADC and ADB are right angles.

Thus, 4x-5=2x+7

Add 5 to both sides:

4x-5+5=2x+7+5

4x=2x+12

Subtract 2x from both sides:

4x-2x=2x+12-2x

2x=12

Divide both sides by 2:

\frac{2x}{2}=\frac{12}{2}

x=6

DC =4x-5

=4(6)-5

=24-5

=19

7 0
3 years ago
What do you call a pot of boiling water on top of mount Everest.​
ruslelena [56]

Answer:

Is it a high pot in use?

Step-by-step explanation:

6 0
3 years ago
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