task/29845652 Сократить дробь
(y⁸ -2y⁷+ y⁶) / (7y⁹ - 7y⁷) =y⁶(y² -2y+ 1) / 7y⁷(y²- 1) =y⁶(y -1)²/ y⁷(y- 1) (y+1) =(y -1)/7y(y+1). ---------
(8a³+27b³)/(9b²+12ab+4a²)=[ (2a)³+(3b)³] /(9b²+12ab+4a²) =(2a+3b)(4a² -6ab +9b²) /(2a+3b)² = (4a² -6ab +9b²) / (2a+3b) . ---------
(p²+q² -2pq -4) / (p² -q²+4q -4) =[ (p -q)² -2²] / [ p² -(q-2)² ] = (p -q -2) (p -q+ 2) / ( p -q+2)( p +q-2) =(p -q -2) / ( p +q-2) .
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task/29845652 Сократить дробь
(y⁸ -2y⁷+ y⁶) / (7y⁹ - 7y⁷) =y⁶(y² -2y+ 1) / 7y⁷(y²- 1) =y⁶(y -1)²/ y⁷(y- 1) (y+1) =(y -1)/7y(y+1). ---------
(8a³+27b³)/(9b²+12ab+4a²)=[ (2a)³+(3b)³] /(9b²+12ab+4a²) =(2a+3b)(4a² -6ab +9b²) /(2a+3b)² = (4a² -6ab +9b²) / (2a+3b) . ---------
(p²+q² -2pq -4) / (p² -q²+4q -4) =[ (p -q)² -2²] / [ p² -(q-2)² ] = (p -q -2) (p -q+ 2) / ( p -q+2)( p +q-2) =(p -q -2) / ( p +q-2) .
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