tscr3ma2rr tscr3ma2rr
  • 14-09-2020
  • Mathematics
contestada

Answer these questions please please

Answer these questions please please class=
Answer these questions please please class=

Respuesta :

devishri1977
devishri1977 devishri1977
  • 14-09-2020

Answer:

Step-by-step

i) a² - 2ab + b² = (a + b)²

a² = p² ;     a  = p

b² = 16 = 4²  ;        b = 4

2ab = 2*p*4 = 8p

p² - 8p + 16 = (p - 4)²

ii) a² + 2ab + b² = (a +b)²

a² = 121x² = (11x)²                 ;  b² = 4y² = (2y)²

2ab = 2 * 11x * 2y = 44xy

121x² + 44xy + 4y² = (11x + 2y)²

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