Question

URGENTE: 1600 + 1156/9 = x² + 400

Answer 1

Resposta:

15556/9=X^2+400

15556=9X^2+3600

-9X^2+15556=3600

-9X^2=3600-15556

-9X^2= -11956

x^2= 11956/9

x= -+14√61/3

x= - 14√61/3

x= 14√61/3

x1= - 14√61/3, x2= 14√61/3

Resposta: x1= - 14√61/3, x2= 14√61/3