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LekaFEV [45]
3 years ago
15

Please help !! Simplify the following expression

Mathematics
2 answers:
Rom4ik [11]3 years ago
7 0
x^{4} + 3 x^{3} -  2x^{3} - 5 x^{2} - x +  x^{2} + x + 1 + 7 x^{4}

Collect the terms. Meaning, collect all exponents in to one whole exponent (e.g. combine the x^4 and 7x^4).

8x^{4} + x^{3} - 4 x^{2} + 1

Therefore your answer is [B].
puteri [66]3 years ago
5 0
8x^4 + x^3 - 4x^2 +1. I believe the answer is B. Please correct me if I am wrong.

You might be interested in
Add.
Sidana [21]

Answer:

1\frac{7}{20}

Step-by-step explanation:

1. Convert the mixed number to an improper fraction to match the rest of the problem (this just makes it easier for now, the answer will still be a mixed number)

-1\frac{4}{5} becomes \frac{9}{5}

2. Re-write the new equation. When there is a "+" in front of a set of parentheses the expression doesn't change aside from removing the plus signs.

The new equation becomes

\frac{9}{5} - \frac{1}{4} -\frac{1}{5}

3. Calculate. Just work out the new expression.

The answer is \frac{27}{20}

4. Convert to a simplified mixed decimal.

27 goes into 20 once with seven left over, making the answer 1\frac{7}{20}

8 0
2 years ago
On a certain hot summer day, 673 people used the public swimming pool. The daily prices are 1.75 for children and 2.00 for adult
amid [387]

Answer:

Number of children = 386

Number of adults = 287

Step-by-step explanation:

Let

x = number of children

y = number of adults

x + y = 673 (1)

1.75x + 2y = 1249.50 (2)

From (1)

x = 673 - y

Substitute x = 673 - y into (2)

1.75x + 2y = 1249.50

1.75(673 - y) + 2y = 1249.50

1177.75 - 1.75y + 2y = 1249.50

- 1.75y + 2y = 1249.50 - 1177.75

0.25y = 71.75

y = 71.75/0.25

y = 287

Substitute y = 287 into (1)

x + y = 673

x + 287 = 673

x = 673 - 287

x = 386

Number of children = 386

Number of adults = 287

3 0
3 years ago
Needs to be checked......
Eduardwww [97]
You answered correctly.

(a brainliest would be appreciated)
8 0
3 years ago
Read 2 more answers
Someone help. i’m so dumb.
Kitty [74]
If you divide a number by 9 then you can also divide it by 3.
5 0
2 years ago
A surgery shows that 85 percent of students carry a backpack to school. Is there are 230 students in the school,how many student
GenaCL600 [577]
The answer is 78% because of the heat
4 0
2 years ago
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