Question

3/5h+1/2=2h/3 help me please!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Explicação passo-a-passo:

3/5h + 1/2 = 2h/3

isolando h

3/5h - 2h/3 = -1/2

mmc: 15h

(9 - 10h²)/15h = -1/2

9 - 10h² = -15h/2

-10h² + 15h/2 + 9 = 0

mmc: 2

-20h² + 15h + 18 = 0

resolvendo bhaskara:

h = -b +-√b² - 4ac

2a

h = -15 +- √225 - 4(-20)(18)

2(-20)

h = -15 +- √225 + 1440

-40

h = -15 +- 40,80

-40

h = -55,80/-40

h = 1,395

h' = 25,8/-40

h' = - 0,645