Question

PLEASE HELP !!!!!!!!!!!

Answer 1

Polynomial :

${3x}^{2} - {5x}^{4} + 2x - 12$

${x}^{5} - {5x}^{4} + {4x}^{3} - {3x}^{2} + 2x - 1$

${x}^{3} - {7x}^{2} + 9x - {5x}^{4} - 20$
The rest are not polynomials.

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I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out !

~Zoey