Question

find the value of the following ​

Answer 1

Answer:

$225 {x}^{2} + 480xy + 256 {y}^{2} \\ = 225 \times 1 + 480 \times 2 + 256 \times 4 \\ = 225 + 960 + 1024 \\ = 3209$

Step-by-step explanation:

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Answer 2

Answer:

2,209

Step-by-step explanation:

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