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Margaret [11]
2 years ago
12

What is the complete factorization of the polynomial below x^3+x^2+9x+9

Mathematics
2 answers:
LenaWriter [7]2 years ago
8 0

Answer: (x+1)(x² + 9)

Step-by-step explanation:

Let f(x)=x³ + x² + 9x + 9

let x= -1

f(-1) = (-1)³ +(-1)² + 9(-1) + 9

= -1 +1 -9 +9 =0

Therefore, (x+1) is a factor

we now divide x³ + x² + 9x + 9 by x+1

x² + 9

_________

x+ 1√x³ + x² + 9x +9

- (x³ + x²)

______________

9x + 9

- (9x +9)

_______________

0

Therefore, (x+1) and (x² + 9) are the 2 factors of the polynomial.

zhenek [66]2 years ago
4 0

using factoring by grouping:

(x^3 + x^2) + (9x + 0)

x^2(x+1) + 9(x+1)

(x^2+9)(x+1)

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Answer:

x<−31

Step-by-step explanation:

7 0
3 years ago
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Sims waist is 30 inches. He wants to put on more weight and is hoping to gain enough weight to increase his waist size by 8%. Ho
11Alexandr11 [23.1K]

Sim wants to increase his waist size to 32.4 inches.

<h3>How many inches does Sim want his waist to be?</h3>

Sim wants the increase to be 8% of 30 inches.

The amount of increase Sim wants in his waist size exists

8% × 30 inches.

= 0.08 × 30 inches.

= 2.4 inches.

Adding the wanted increase to his present size would create Sim's waist size to be

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8 0
1 year ago
If h(x)=-1/2x+3, find h(-29)
aleksklad [387]
Just plug and chug :) 

h(-29)=-1/2(-29)+3 
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8 0
2 years ago
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$28 dollars per share and sells them at $24.50 what is the percent increased
ELEN [110]
The amount decreased would be 12.5%.
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3 years ago
What is the median for the numbers 3.60, 3.80, 5.44, 5.52, 5.72, 7.22?
Helen [10]
Okay so first of all we need to know the definition of our median first*
median: Given any group of numbers we put the numbers in order from least to greatest then find the number that's right in the middle. 
Here ill show you how we do it:)
<span>3.60, 3.80, 5.44, 5.52, 5.72, 7.22?
its already in order for us:)
but when we find the middle number it turns out that we have two middle numbers:/
simple:) all we do is take the two numbers add them together and divide by two
since our middle numbers are 5.44 and 5.52 we are going to use these:)
first add!
5.44 + 5.52 = 10.96 
now divide that by 2 
10.96 </span>÷ 2 = 5.48
so our median for this set of numbers is 
5.48!
hope this helps;)
7 0
3 years ago
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