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laila [671]
3 years ago
6

5-x=3 Work out the value of 3x^2

Mathematics
1 answer:
Oxana [17]3 years ago
8 0

Answer:

12

Step-by-step explanation:

5 - x = 3 \\  \\ 5  - 3 = x \\  \\ 2 = x \\  \\ x = 2 \\  \\ 3 {x}^{2}  = 3 {(2)}^{2}  = 3 \times 4 = 12

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