Question

2 grau incompletas
b) 6x²-50=0
c)x²-121=0

Answer 1

x² - 121 = 0
x² = 121
x = √121
x 1 = 11
x 2 = - 11

6x² - 50 = 0
6x² = 50
x² = 50 /6
x² = √8,3333...
x 1 = 2,8888...
x 2 = - 2,888....

2x² - 50 = 0
2x² = 50
x² = 50 / 2
x² = 25
x = √25
x 1 = 5
x 2 = - 5

Answer 2

b) 6x²-50=0
    6x² = 50 
    x² = +/- √50 ==> √50.√6 ==> √300 ==> +/- 10√3 
                √6            √6.√6          6                   6

  x = +/- 5√3
              2

c)x²-121=0  ==> x² = 121 ==> x = +/-√121 ==> x = +/- 11