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klasskru [66]
2 years ago
6

What is the product of x-3 and 4+x​

Mathematics
1 answer:
Mariulka [41]2 years ago
7 0

Answer:

x2+11x+28

Step-by-step explanation:

We have two binomials, so we can use the highly useful mnemonic FOIL to helps us:

Multiply the first terms:  

x

⋅

x

=

x

2

Multiply the outside terms:  

x

⋅

4

=

4

x

Multiply the inside terms:  

7

⋅

x

=

7

x

Multiply the last terms:  

7

⋅

4

=

28

Thus,  

(

x

+

7

)

(

x

+

4

)

multiplies out to  

x

2

+

4

x

+

7

x

+

28

, which can be simplified to:

x 2 +11 x + 28

Hope this helps!

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Step-by-step explanation:

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Read 2 more answers
express 121,200 in exponential (powers of 10) notation. express the earth sun distance in kilometers in powers of 10 notation.
Mashutka [201]

The exponential form of given number 121200 is 1.212 × 10^5

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × 10^8

For given question,

We need to express 121,200 in exponential (powers of 10) notation.

To use scientific notation, pick a value between 1 and 10, then multiply it by 10ˣ.

The number between 1 and 10 in 121200 is 1.212 with 5 decimal points.

So, the exponential notation of given number would be,

121,200 = 1.212 × 10^5

Earth's average distance from the Sun is around 93 million miles (150 million kilometers). That's one AU.

So the number between 1 and 10 in 150,000,000 is 1.5, with 8 decimal points.

So, the distance between he Earth and the Sun is:

150,000,000 = 1.5 × 10⁸

Therefore, the exponential form of given number 121200 is 1.212 × 10^5

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × 10^8

Learn more about the powers of 10 here:

brainly.com/question/13303295

#SPJ4

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