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Ann [662]
3 years ago
5

Find all zeros for f(x)=x(5x-2)(x^2+1)

Mathematics
1 answer:
Svetach [21]3 years ago
5 0
Factoring x2+5x-1

The first term is, x2 its coefficient is 1 .
The middle term is, +5x its coefficient is 5 .
The last term, "the constant", is -1

Step-1 : Multiply the coefficient of the first term by the constant 1 • -1 = -1

Step-2 : Find two factors of -1 whose sum equals the coefficient of the middle term, which is 5 .

-1 + 1 = 0

Conclusion : Trinomial can not be factored

Final result :

x2 + 5x - 1
This is what did but I not sure it's right?!
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I’m working on 3 and 4 only maybe if I can have some explanation so I can understand and do more of these next week.
guapka [62]

4.b.

Answer:  See below.

Step-by-step explanation:

<h2><u>For the equation f(x) = 2x</u></h2>

3.a.  f(6) means use x = 6 in the equation f(x) = 2x

so f(6) would be f(6)= 2(6)

<u>f(6) = 12</u>

3.b.  f(-11) = 2(-11)

<u>f(-11) = -22</u>

3.c.  f(2.75) = 2(2.75)

<u>f(2.75) = 5.5</u>

3.d.  This is turned around.  We are told f(x)=20, so what would x need to be for f(x) to be 20?  Since f(x) = 2x, we can say 20 = 2x.  Therefore x = 10

f(10) = 20

<u>The rest of (3) are solved in the same fasion.h</u>

<u></u>

<h2><u>For the equation  f(x)= 5x+50</u></h2>

4.a.  f(7) = 5(7)+50

<u>f(7) = 85</u>

4.b. f(-12)

  f(-12) = 5*(-12)+50

<u>f(-12) = -60</u>

<u></u>

Continue in the same fashion for these types of problems.

7 0
2 years ago
Each power smoothie that Theo makes has 3 scoops of mango, 1 scoop of strawberries, and 1 scoop of spinach. If Theo makes 7 powe
EleoNora [17]

Answer: 35 scoops total!

Step-by-step explanation: FIrst, you would add the number of scoops in total which is 3+1+1=5 scoops.

Now you would do 7*5=35

Therefore, Theo uses 35 scoops in all. I hope this helps you!

5 0
3 years ago
Find the value of each power?
sweet [91]
1=-8          l
4=100       l
7=?           l
llllllllllllllllllllll
5 0
3 years ago
Read 2 more answers
What is the value of (f – g)(144)?
NikAS [45]
(f - g) (144)   Multiply 144 by both variables in the other set of parentheses.

[(144) (f) - (144) ( g)]   Simplify

144 f - 144g
5 0
3 years ago
Need HELP!!! For all, I’m truly confused
irina1246 [14]

Step-by-step explanation:

You need to know some geometry rules.

For example:

Angle sum of a triangle is equal to 180 degrees.

Straight line is equal to 180 degrees.

Other rules I have attached.

If you have any confusion over these I will be happy to answer your questions.

6 0
3 years ago
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