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MAXImum [283]
3 years ago
6

Alfred has a 30 dollar gift voucher.He plans to buy as many video games as he can.The cost of each game is 10 dollars.There is a

shipping charge of 2 dollars.How many games can he buy without going over the limit
Mathematics
1 answer:
kotykmax [81]3 years ago
5 0
10+2=12 30 divided by 12 = 2.5
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Step-by-step explanation:

#1.

(a + 2b)²

<em>Using identity (x + y)² = x² + 2xy + y², we get:</em>

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#2.

(5x - 3y)²

<em>Using identity (a - b)² = a² - 2ab + b², we get:</em>

= (5x)² + (3y)² - 2 × (5x) × (3y)

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#3.

(3a + 4)(3a - 4)(9a² + 16)

<em>Using identity (x + y)(x - y) = x² - y², we get:</em>

= [(3a)² - (4)²][9a² + 16]

= (9a² - 16)(9a² + 16)

= (9a²)² - (16)²

= 81a⁴ - 256 Ans.

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