3 years ago

(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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