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Westkost [7]
3 years ago
9

Expand (x+2)(x2+x+1)​

Mathematics
2 answers:
Alexandra [31]3 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]3 years ago
4 0

Answer:

x³+3x²+3x+2

Step-by-step explanation:

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$5.38 per pound

Step-by-step explanation:

70/13=5.384615

5.38x13=69.94

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3 years ago
What is the answer?
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3 years ago
The length of a rectangle is twice its breadth. If its length is decreased half of the 10 cm and the breadth is increased by hal
Leto [7]

Since the length of this rectangle is twice its breadth, the length is equal to 40 cm.

<h3>How to calculate the area of a rectangle?</h3>

Mathematically, the area of a rectangle can be calculated by using this formula:

Area = Length × Width

Based on the information provided, we have:

  • Its length is decreased half of the 10 cm ⇒ (length - 5)
  • Its breadth is increased by half of the 10 cm ⇒ (breadth + 5)
  • Its area is increased by 75 cm ⇒ (area + 5)

Substituting the parameters into the formula, we have:

LB + 75 = (L - 5)(B + 5)

2B² + 75 = (2B - 5)(2B + 5)

2B² + 75 = 2B(B + 5) - 5(B + 5)

2B² + 75 = 2B² + 10B - 5B - 25

5B = 75 + 25

5B = 100

B = 100/20

B = 20 cm.

For the length, we have:

L = 2B

L = 2 × 20

L = 40 cm.

Read more on rectangle here: brainly.com/question/25292087

#SPJ1

6 0
2 years ago
. The population of the United States is about 3.22x10^8. Write the population in standard form G. 32,200,000 H. 3,220,000,000 I
liberstina [14]
The answer should be 322,000,000 (I)
10^8=100,000,000
you would then multiply 3.22 by 100,000,000 to get 322,000,000
3 0
3 years ago
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