Answer:
9x^2-15x+9
Step-by-step explanation:
f (3x-1)= (3x-1)^2 - 3(3x-1) + 5
= (3x-1)(3x-1) - 9x + 3 + 5
= 9x^2 - 3x - 3x + 1 - 9x + 8
= 9x^2 - 6x - 9x + 9
= 9x^2 - 15x + 9
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Verified answer
Answer:
9x^2-15x+9
Step-by-step explanation:
f (3x-1)= (3x-1)^2 - 3(3x-1) + 5
= (3x-1)(3x-1) - 9x + 3 + 5
= 9x^2 - 3x - 3x + 1 - 9x + 8
= 9x^2 - 6x - 9x + 9
= 9x^2 - 15x + 9