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dlinn [17]
4 years ago
12

(x^2-3x+1)(x^2+2x-1) PLEASE SHOW STEP BY STEP ON HOW YOU GOT THE ANSWER

Mathematics
2 answers:
Aleks04 [339]4 years ago
8 0

Answer:

=x4−x3−6x2+5x−1

Step-by-step explanation:

(x2−3x+1)(x2+2x−1)

=(x2+−3x+1)(x2+2x+−1)

=(x2)(x2)+(x2)(2x)+(x2)(−1)+(−3x)(x2)+(−3x)(2x)+(−3x)(−1)+(1)(x2)+(1)(2x)+(1)(−1)

=x4+2x3−x2−3x3−6x2+3x+x2+2x−1

=x4−x3−6x2+5x−1

Harrizon [31]4 years ago
7 0

Answer:

first multiply

2x-3x+1+2x+2x-1

add all like terms

3x+1-1

final answer is 3x

Step-by-step explanation:

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Please help me!This is apparently a math middle school question.​
Harman [31]

Answer:

80,223,666 Americans under 20.

Step-by-step explanation:

The important information is the second bullet point, I don't think the rest is relevant.

We need to find <em>what number 193,000 is 0.24% of</em>.

We can use the equation <em>x * 0.0024 = 193,000</em>.

By dividing both sides by 0.0024, we get that <em>x = 80,416,666</em>. This is the total.

By subtracting <em>80,416,666 - 193,000</em>, we can get the number of people who do not have diabetes. The difference is 80,223,666.

4 0
3 years ago
Last year Betty's annual salary was $42000. This year she received a raise and now eams $46500. On a weekly basis, how much more
bearhunter [10]

Answer:

About 87$

Step-by-step explanation:

Yu take both salary amounts an divide by 52 since there are 52 weeks in a year and then find the difference between them

3 0
3 years ago
For the equation below, x is the input and y is the output. Choose the ordered pair that makes a true statement for
dem82 [27]

Answer:

(0,3) and (1,-1)

8 0
4 years ago
Consider the system of equations shown.
8_murik_8 [283]

Answer:

  D.  There are infinitely many solutions

Step-by-step explanation:

Solving the second equation for y gives you the first equation. This is a dependent system. Any solution of one equation is also a solution to the other one. There are infinitely many solutions.

3 0
3 years ago
Equations by substitution<br> y=3x-7; 2x+4y=14
Bad White [126]
Let's plug in y=3x-7 into 2x+4y=14
2x+4 (3x-7)=14
Distribute
2x+12x-28=14
Add
14x-28=14
Add 28 to both sides
14x=42
Divide
X=3
Y=3 (3)-7
Y=9-7
Y=2
(3,2) A the solution is (3,2)
8 0
3 years ago
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