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ipn [44]
2 years ago
8

Help is number 2 correct and help for number one​

Mathematics
1 answer:
gayaneshka [121]2 years ago
3 0

Number 2 is incorrect :

\frac{-25x^{3}+15x }{5x}  = \frac{-25x^{3}}{5x} + \frac{15x}{5x} = -5x^{2} + 3

Number 1 :

(-5)^{3} . 13^{-2} . (-5) .13^{9} = -125 . \frac{1}{13^{2}} .(-5).13^{9}   = 625 . \frac{13^{9}}{13^{2}} = 625 . 13^{7} (i dont think we can bare calculate this cause it;s too big ;-;)

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