Question

Выполните действие г) 28p²×p²+5p-1/0,7-3p×p³+5p²-p/0,1+2p⁴+10p³-2p²

Answer 1

$\displaystyle\bf\\28p^{2} \cdot\frac{p^{2} +5p-1}{0,7} -3p\cdot\frac{p^{3} +5p^{2}-p }{0,1} +2p^{4} +10p^{3}-2p^{2}=\\\\\\=40p^{2} \cdot (p^{2} +5p-1)-30p\cdot (p^{3} +5p^{2} -p)+2p^{4}+10p^{3} -2p^{2} =\\\\\\=40p^{4} +200p^{3} -40p^{2} -30p^{4} -150p^{3} +30p^{2} +2p^{4} +10p^{3}-2p^{2} =\\\\\\=12p^{4} +60p^{3} -12p^{2}$