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Vanyuwa [196]
3 years ago
8

Simplify the expression –3(x + 3)2 – 3 + 3x. What is the simplified expression in standard form?

Mathematics
2 answers:
kolezko [41]3 years ago
8 0

Answer:

-3x^2-15x-30

Step-by-step explanation:

The given expression is -3(x+3)^2-3+3x.

We expand to obtain:

-3(x^2+6x+9)-3+3x.

We apply the distributive property to get:

-3x^2-18x-27-3+3x.

Group and combine the like terms;

-3x^2-18x+3x-27-3.

-3x^2-15x-30.

This polynomial expression is in standard form because it is descending powers of x.

Yuliya22 [10]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Answer:

c. negation

Step-by-step explanation:

A conjunction is two statements joined by "and"; that does not fit this statement, so it is not a conjunction.

A disjunction is two statements joined by "or"; that does not fit this statement, so it is not a disjunction.

A conditional is an "if-then" statement; that does not fit this statement, so it is not a conditional.

This is a negation; the word "not" negates "the glass is always half full."

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3 years ago
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Step-by-step explanation:

To do pythagoras theorem

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I hope this helps you

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64=4.(4+x)

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A model car travels 20 meters in 15 seconds how many will it travel in 45 seconds ​
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Step-by-step explanation:

<em>if the car travels 20 meters in 15 seconds</em>

<em>you want to take 45 and divide it by 15, giving you 3</em>

<em>now you want to multiply 20x3</em>

<em>which will get you </em><em>60 meters</em>

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