3 years ago

Factor 9x^2+6x+1 completely

Mathematics

2 answers:

xeze [42]3 years ago

8 0

Answer:

(3x+1)^2

Step-by-step explanation:

3x+1 • 3x +1 = (3x+1)^2

Distribute:

9x^2 +3x +3x +1 = 9x^2 +6x +1

Savatey [412]3 years ago

7 0

Answer:

$(3x+1)^2$

Step-by-step explanation:

$9x^2+6x+1=\\(3x+1)^2$

You can confirm this by working and expanding backwards:

$(3x+1)^2=\\(3x+1)(3x+1)=\\9x^2+3x+3x+1=\\9x^2+6x+1$

Hope this helps!

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Americans who are 65 years of age or older make up 12.9% of the total population. If there at 30.3 million american in this age

telo118 [61]

Total population of US is 234.88 million.

Step-by-step explanation:

Given,

Number of people are 65 or older = 30.3 million

This represents 12.9% of total population.

Let,

x represent the total population.

12.9% of x = 30.3 million

$\frac{12.9}{100}x=30.3\ million\\0.129x=30.3\ million$

Dividing both sides by 0.129x

$\frac{0.129x}{0.129}=\frac{30.3}{0.129}\ million\\\\x=234.88\ million$

Total population of US is 234.88 million.

Keywords: percentage, division

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Ber [7]

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IgorLugansk [536]

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Step-by-step explanation:

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