Question

resolva equacao a seguir, sendo u=r ! 2²^-3.2^+8=0 obs: ^ e x ta ? inequacao exponencial

Answer 1

2^x²-3.2^x+=0

(2^x)²-3.2^x+2=0

x²-3x+2=0

B²-4.a.c

(-3)²-4.1.2

9-8

1

x=(-3) +- √1/2.1

x= +3+1/2 ⇔ x'= 3+1/2=4/2=2

x"+3-1/2=2/2=1