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Westkost [7]
4 years ago
9

Expand (x+2)(x2+x+1)​

Mathematics
2 answers:
Alexandra [31]4 years ago
6 0

Answer:

x³ + 3x² + 3x + 2

Step-by-step explanation:

Given

(x + 2)(x² + x + 1)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x² + x + 1) + 2(x² + x + 1) ← distribute both parenthesis

= x³ + x² + x + 2x² + 2x + 2 ← collect like terms

= x³ + 3x² + 3x + 2

svetoff [14.1K]4 years ago
4 0

Answer:

x³+3x²+3x+2

Step-by-step explanation:

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3 1/2 x 23 solve this problem
pashok25 [27]

Answer:

80 1/2

Step-by-step explanation:

First, make 3 1/2 into an improper fraction so it is easier to solve.

3*2=6+1=7; 7/2

7/2*23/1

23*7=161

2*1=2

161/2=80.5 or 80 1/2

7 0
3 years ago
1. Find the 4th term for the sequence with formula tn= n² + 1
solong [7]

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17

Step-by-step explanation:

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T4 = 4² + 1 = 17

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3 years ago
Franny took a road trip to her grandmother’s house. She drove at a constant speed of 60 miles per hour for 2 hours. She took a b
bogdanovich [222]

Answer:

220 miles.

Step-by-step explanation:

Distance travelled = speed * time

Total distance travelled = 60 * 2 + 50*2

= 120 + 100

= 220 miles.

4 0
4 years ago
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Can someone help me? I’ve been stuck for about an hour and my head is about to combust. Thanks!
STatiana [176]

Answer:

2.1

Step-by-step explanation:

You need to substitute the 11 for the x.

y = -8.9(11) + 100

y = -97.9 + 100

y = 2.1

5 0
4 years ago
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Zara's weekly pay is increased by 5% to $315. What was Zara's pay before the increase
Elina [12.6K]

Answer:

$299.25

Step-by-step explanation:

What is 5% of $315? = $15.75

Therefore $315 - 5% =

$315 - $15.75

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