Icono del sitio Solucionario Baldor

Ejercicio 25

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CAPITULO II

Resta de polinomios con coeficientes fraccionarios
Ejercicio 25
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  1. 5 6 a 2 de 3 8 a 2 – 5 6 a 3 8 a 2 – 5 6 a– 5 6 a 2 = 3 8 a 2 – 5 6 a 2 – 5 6 a = 9 a 2 –20 a 2 24 – 5 6 a = – 11 a 2 24 – 5 6 a
  2. 1 2 a– 3 5 bde8a+6b–5 8a+6b–5 – 1 2 a+ 3 5 b ¯ ( 8a– 1 2 a ) +( 6b+ 3 5 b ) –5 = 16a–a 2 + 30b+3b 5 –5 = 15a 2 + 33b 5 –5
  3. 7 9 x 2 yde x 3 + 2 3 x 2 y–6 x 3 + 2 3 x 2 y–6– 7 9 x 2 y = x 3 +( 2 3 x 2 y– 7 9 x 2 y ) –6 = x 3 + 6 x 2 y–7 x 2 y 9 –6 = x 3 – x 2 y 9 –6
  4. 1 2 a– 3 4 b+ 2 3 cdea+b–c a+b–c – 1 2 a+ 3 4 b– 2 3 c ¯ ( a– 1 2 a ) +( b+ 3 4 b ) +( –c– 2 3 c ) = 2a–a 2 + 4b+3b 4 + –3c–2c 3 = a 2 + 7b 4 – 5c 3
  5. m+n–pde 2 3 m+ 5 6 n+ 1 2 p 2 3 m+ 5 6 n+ 1 2 p m+n–p ¯ ( 2 3 m+m ) +( n+ 5 6 n ) +( 1 2 p–p ) = 2m+3m 3 + 6n+5n 6 + p–2p 2 = 2m+3m 3 + 6n+5n 6 + p–2p 2 = 5m 3 + 11n 6 – p 2

  6. – m 4 + 7 8 m 2 n 2 – 2 9 m n 3 de 2 11 m 3 n+ 5 14 m 2 n 2 + 1 3 m n 3 –6 2 11 m 3 n+ 5 14 m 2 n 2 + 1 3 m n 3 –6 m 4 – 7 8 m 2 n 2 + 2 9 m n 3 m 4 + 2 11 m 3 n+( 5 14 m 2 n 2 – 7 8 m 2 n 2 ) +( 2 9 m n 3 + 1 3 m n 3 ) –6 = m 4 + 2 11 m 3 n+ 20 m 2 n 2 –49 m 2 n 2 56 + 2m n 3 +3m n 3 9 –6 = m 4 + 2 11 m 3 n– 29 m 2 n 2 56 + 5m n 3 9 –6




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