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Alja [10]
3 years ago
7

If (a^3+27)=(a+3)(a^2+ma+9) then m equals

Mathematics
1 answer:
Ronch [10]3 years ago
7 0

Answer:

m = - 3

Step-by-step explanation:

a³ + 27 ← is a sum of cubes and factors in general as

a³ + b³ = (a + b)(a² - ab + b²), thus

a³ + 27

= a³ + 3³

= (a + 3)(a² - 3a + 9)

comparing a² - 3a + 9 to a² + ma + 9, then

m = - 3

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Answer:

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Step-by-step explanation:

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f(x) = 3(x + 1)(x - 7) ← expand the factors using FOIL

     = 3(x² - 6x - 7) ← distribute the parenthesis

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4 0
3 years ago
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Pani-rosa [81]
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3 years ago
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Can you help answer whether this is 3 or 32?
nekit [7.7K]

Answer:

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3 years ago
Half-life for McGill-23 is 145 years. What is the k value?​
Paraphin [41]

Answer:

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Step-by-step explanation:

Half-life for McGill-23 is 145 years. What is the k value?​

half of 145 = 72.5

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Hope I did the right thing

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7 0
3 years ago
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Hope that helps and you can remember the formula and steps for future use!
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4 years ago
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