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mash [69]
2 years ago
11

I need to know how to solve this foil problem i algebra

Mathematics
2 answers:
maxonik [38]2 years ago
7 0

do: first of first bracket x first of 2nd bracket

+( first of 1st bracket x 2nd of 2nd bracket)

+(2nd of 1st bracket x 1st of 2nd bracket)

+ (2nd of 1st bracket x 2nd of 2nd bracket)

== 10n -16n +20n+32=    14n+32

Vesna [10]2 years ago
4 0

Hey there!

When multiplying binomials, keep in mind that you have to be very careful when you multiply.

(-2n-4)(-5n-8)

You can split it up so it is easier to distribute.

-2n(-5n-8)

10n+16n

-4(-5n-8)

20n+32

Now, add like terms.

10n+16n+20n= 46n

46n+32 is the answer.

I hope this helps, DM me with any questions you might have.

~kaikers

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  1. The expression was rewritten using the commutative law of addition.
  2. Line 1 says 3 + 4, which could be represented using dots as ••• + •••• for a total of 7 dots.
  3. Line 2 says 4 + 3, which could be represented using dots as •••• + ••• for a total of 7 dots.

<h3>What is the commutative law of addition?</h3>

The commutative law of addition is also referred to as the law of cumulative addition and it states that if two numbers are added together, then, the outcome is equal to the addition of their interchanged position because addition is considered as a binary operation.

This ultimately implies that, the sum of addends would always be the same (equal) regardless of their arrangement in accordance with the commutative law of addition. Mathematically, the commutative law of addition can be represented using the following formula:

A + B = B + A.

In this context, we can reasonably infer and logically deduce that the given expression was rewritten using the commutative law of addition.

In conclusion, Line 1 says 3 + 4, which could be represented using dots as ••• + •••• for a total of 7 dots. Line 2 says 4 + 3, which could be represented using dots as •••• + ••• for a total of 7 dots.

Read more on commutative law of addition here: brainly.com/question/778086

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Grace wove a potholder with an area of 80 square inches. The lengths and widths of the sides are whole numbers. Which dimensions
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Answer:

Kindly check explanation

Step-by-step explanation:

Given the question :

Grace wove a potholder with an area of 80 square inches. The lengths and widths of the sides are whole numbers. Which dimensions make the most sense for a potholder?

Since the Area of the potholder = 80 sq inch

And the dimension of the potholder ; length and width are integers ; Hence, possible dimensions could be ;

Area = length × width

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Potholders are fabrics sewn from the purpose of being used to handle pots and other kitchen equipments.

Usually the dimension are usually close, hence, the most sensible dimension a potholder with an area of 80 sq inch could have is 8 by 10 or vice-versa.

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