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White raven [17]
2 years ago
13

Express as a trinomial. (x + 9) (3x + 9)

Mathematics
2 answers:
olasank [31]2 years ago
3 0

Answer:

3x^2+36x+81

Step-by-step explanation:

(x+9)(3x+9)=3x^{2} +9x+37x+81

Vesnalui [34]2 years ago
3 0

⇛(x + 9) (3x + 9)

⇛x(3x+9) + 9(3x+9)

⇛3x² + 9x + 18x + 81

⇛3x² + 27x + 81

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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geniusboy [140]
Your answer is 6 centimeters because you would have to subtract 3 from 9. Hence, your answer is 6. 

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6 0
3 years ago
5a - 24b =-15<br> 10a + 45c =21<br> 48b + 35c = 49
andrew-mc [135]

5a + 15 = 24b so,

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________________-

10c = 2

c = 1/5

sub to second equation,

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21 = 24b

b = 7/8

redo the calculations, correct me if I'm wrong

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Step-by-step explanation:

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