Respuesta :

ot7777777

Answer:

a)4

Step-by-step explanation:

(a+b)²=43 eqn 1

(a²+b²)=35 eqn 2

solving eqn 2 by putting the value of (a+b)² by eqn 1

  • (a+b)²-2ab=35
  • 43-2ab=35
  • -2ab=35-43
  • ab= -8/-2
  • ab =4

hope it helps

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