g(3) = 2(3) + 1 = 7
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- Now substitute \( a+b \), \( a^2+b^2 \), and \( ab \) into the sum of cubes formula:
- Question:** A cartographer is designing a map transformation function \( T(x) = 3x^2 - 2x + 5 \). If \( x = g(y) = 2y + 1 \), find \( T(g(3)) \).
- First, find \( g(3) \):
- Now substitute \( x = g(3) = 7 \) into \( T(x) \):
- T(7) = 3(7)^2 - 2(7) + 5
- 3(7)^2 = 3 \times 49 = 147
