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Mathematics, 27.04.2021 08:40 youngboymark123

Are the following expressions polynomials? if so, name the type of polynomial and state the degree. if not, justify your reasoning 8x ^{2} y ^{3}




\frac{2a {}^{2} }{3b}
\frac{3}{2} x ^{4}  - 5x ^{3}  + 9x ^{7}
10a ^{6} b ^{2}  + 17ab ^{3} c - 5a ^{7}
2m + 3^{ - 1}  + 8m ^{2}n

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