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insens350 [35]
2 years ago
13

(x + 3)^2 - 4x^2 Factorise using the difference of two squares

Mathematics
1 answer:
AlladinOne [14]2 years ago
8 0

Answer:

3(x + 1)(3 - x).

Step-by-step explanation:

(x + 3)^2 - 4x^2

Using the identity a^2 - b^2 = (a - b)(a + b), we have

(x + 3 - 2x)(x + 3 + 2x)

= (-x + 3)(3x + 3)

= 3(x + 1)(3 - x)

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Step-by-step explanation:

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2 years ago
I need help with this I don't understand this
Mandarinka [93]

Answer:

45.8

Step-by-step explanation:

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Area=3(\frac{5*7}{3} )+(\frac{5*4.3}{2})\\Area=35+10.75=45.75

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4 0
3 years ago
Penny is going to fly her plane to her sister's house, which is 544.32 miles away. Penny's airplane flies at an average speed of
Sedbober [7]

Answer:

0.81 hour

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3 0
2 years ago
Lisa ate 1/8 of a pizza. Josh ate 21/2 times a much as Lisa. What fraction of the pizza did josh eat
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Josh ate 5/2 of the pizza
3 0
3 years ago
Read 2 more answers
Cheryl can travel 21.6 miles on one gallon of gas. how far can cheryl travel on 6.2 gallons of gas?
boyakko [2]
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Hope that helped!
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