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muminat
3 years ago
9

Find the sum and choose the correct answer.

Mathematics
2 answers:
Alborosie3 years ago
5 0
B, n to the 3rd power + 4n to the 2nd power +8n -16
Alborosie3 years ago
5 0

Answer:

Option B (n³ + 4n² + 8n - 16)

Step-by-step explanation:

In this question we have to add two expressions given

( 2n³ + 4n² - 7 ) and ( -n³ + 8n - 9 )

( 2n³ + 4n² - 7 ) + ( -n³ + 8n - 9 )

Now we group the similar terms

( 2n³ - n³ ) + 4n² - ( 7 + 9 ) 8n

= n³ + 4n² - 16 + 8n

= n³ + 4n² + 8n - 16

Option B (n³ + 4n² + 8n - 16) is the correct answer.

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Marrrta [24]

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5 0
3 years ago
3x^2-4x+1, match the following
il63 [147K]

Answer:

x = variable

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Step-by-step explanation:

variables are typically the letters in equations (usually x and y)

coefficients are the numbers attached to the variables

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algebraic expressions are the full expression

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8 0
3 years ago
First-person to get the answer correct with an explanation gets Brainliest
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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Evaluate the expression 3 ⋅ 2^t , when t=1. *
lisov135 [29]

Answer:

6

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3 ⋅ 2^t

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