=∛(12mn²-6m²n)-(8n³-m³) / 2n-m = ∛(2n-m)6mn-(2n-m)(4n²+2mn+m²) /<span>2n-m =
</span>∛(2n-m )(6mn-4n²-2mn-m²) /2n-m = ∛ - (2n-m)(4n²-4mn+m²) /2n-m =∛-(2n-m)(2n-m)² /<span>2n-m = - </span>∛(2n-m)³ / <span>2n-m =-1</span>
48+42*18:63=63
1) 42*18=756
2) 756:63=12
3) 48+756=804
750000*0,05 = 37500 ( руб) - 5 %
750000 + 37500 = 78750 ( руб ) - окажется через год
1) 4x+5x+4.7=16.4
9х+4.7=16.4
9х=16.4-4.7
9х=11.7
х=11.7:9
х=1.3