X^3+3x^2-18x-3x^2-9x+54
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Final answer=
X^3-27x+54
I hope you understand my explanation and best of wishes!!
The missing side length? Or the missing angle?
I'm assuming 43 is actually 4/3
see what number the previous term must be multiplied by to get the next term
4 *something = 12, 12*something=36
common ratio is 3
Answer: Yes
Step-by-step explanation: Calculator