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Paha777 [63]
3 years ago
5

Which expression is the simplest form -(4x^3+x^2)+2(x^3-3x^2)

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0

Answer:

6x^3-5x^2

Step-by-step explanation:

(4x^3+x^2)+2(x^3-3x^2)

4x^3+x^2+2x^3-6x^2

4x^3+2x^3+x^2-6x^2

6x^3+x^2-6x^2

6x^3-5x^2

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Factor Completely: 25x2 - 64
prohojiy [21]
This is a difference of perfect squares which is of the form:

(a^2-b^2)

And which always factors to:

(a-b)(a+b)  

In this case:

(5x-8)(5x+8)
6 0
4 years ago
a display at an aquarium has sea stars to wolf eels in a ratio 4 : 5. It also has 5/8 as many rockfish as sea stars. there are 4
r-ruslan [8.4K]

The number of sea stars is 64.

What is a ratio?

Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other.

In general, a: b, which can be interpreted as "a is to b," is used to denote a ratio between two quantities, let's say "a" and "b."

This ratio is expressed in fraction form as a/b. We utilize the same method for further simplifying a ratio as we use for further simplifying a fraction.

According to the question,

Ratio of sea stars to wolf eels = 4:5

Number of rock fish= 5/8 (Number of sea stars)

Number of wolf eels - Number of rock fish = 40

Using the given information, we get,

Number of sea stars = 8/5 (Number of rock fish)

On simplification,

Number of wolf eels = 80

So, number of sea stars = (4/5)*80

                                          = 64

Learn more about ratios here:

brainly.com/question/2328454

#SPJ1

7 0
2 years ago
Find themissing number and name the property you used to find it . Write Commutative or associative
9966 [12]

11. 4,890 and commutative

12.2,592 and associative

not 100 percent sure about my answer sorry

6 0
3 years ago
Read 2 more answers
What is the value of 5/z when z =2?
Setler79 [48]

Answer:

z = 2. \\ 5 \div z \\ 5 \div 2 \\ 2.5

<h2>2.5 is the correct answer .</h2>

Thank you ☺️☺️

3 0
3 years ago
Mrs.Murphy's class is making kites for a science experiment.Each kite requires 3/5 of a yard of fabric.how many kites can they m
Reil [10]
They can make about 16 kites
6 0
3 years ago
Read 2 more answers
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