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choli [55]
3 years ago
9

(3x)2 – 7y2, when x = 3 and y = 2

Mathematics
2 answers:
denis23 [38]3 years ago
4 0

3 \times 3 \times 2 - 7 \times 2 \times 2 \\ 18 - 28 \\  - 10

baherus [9]3 years ago
3 0

Answer:

115

Step-by-step explanation:

(3x)^2 – 7y^2

Plug in:

(3×3)^2 – 7×2^2

9^2 - 14^2

81 - 196

115

Hope this helped.

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