Question

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por favor ;( se los pido de corazón ayudamee estes problemas que tenga su explicación cada uno par entender ​

Answer 1

PROBLEMA 8

$M = \frac{35 {x}^{3} {y}^{5} }{5x {y}^{4} } - \frac{10 {x}^{7} {y}^{2} }{2 {x}^{5} y} \\ M = 7 {x}^{3 - 1} {y}^{5 - 4} - 5 {x}^{7 - 5} {y}^{2 - 1} \\ M =7 {x}^{2} y - 5 {x}^{2} y \\ M = 2 {x}^{2} y$

PROBLEMA 9

$\frac{27 {x}^{12} + 36 {x}^{5} - 54 {x}^{7} - 9 {x}^{8} }{9 {x}^{3} } \\ \frac{27 {x}^{12} }{9 {x}^{3} } + \frac{36 {x}^{5} }{9 {x}^{3} } - \frac{54 {x}^{7} }{9 {x}^{3} } - \frac{9 {x}^{8} }{9 {x}^{3} } \\ 3 {x}^{12 - 3} + 4 {x}^{5 - 3} - 6 {x}^{7 - 3} - {x}^{8 - 3} \\ 3 {x}^{9} + 4 {x}^{2} - 6 {x}^{4} - {x}^{5}$

PROBLEMA 10

$N = \frac{ - 45 {x}^{14} + 27 {x}^{10} }{9 {x}^{7} } + \frac{72 {x}^{19} - 24 {x}^{15} }{8 {x}^{12} } \\ N = \frac{ - 45 {x}^{14} }{9 {x}^{7} } + \frac{27 {x}^{10} }{9 {x}^{7} } + \frac{72 {x}^{19} }{8 {x}^{12} } - \frac{24 {x}^{15} }{8 {x}^{12} } \\ N = - 5 {x}^{14 - 7} + 3 {x}^{10 - 7} + 9 {x}^{19 - 12} - 3 {x}^{15 - 12} \\ N = - 5 {x}^{7} + 3 {x}^{3} + 9 {x}^{7} - 3 {x}^{3} \\ N = 4 {x}^{7}$