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Karo-lina-s [1.5K]
3 years ago
14

The expression (a^2 + b^2)^2 is equivalent to

Mathematics
1 answer:
Alexxandr [17]3 years ago
6 0

Answer:

Step-by-step explanation:

(x + y)² = x² + 2xy + y²

(a² + b²)²  = (a²)² + 2*a²*b² + (b²)²      {x = a² ;  y = b²}

                = a⁴ +2a²b² + b⁴    

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Let us assume that the weight of carrots is "X" kilogram

Since the total weight is 9 kilograms, the weight of potatoes should be "9-X" kilograms.

The cost of "X" kilograms of carrot at $0.75/kilogram is calculated as = 0.75*X = 0.75X

The cost of "9-X" kilograms of potatoes at $0.70/kilogram is calculated as  0.70*(9-X)

We know that the total cost is $6.60

We now frame the equation as:

0.75X + (9-X)*0.70 = 6.60

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Answer:

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