Solve the equation 3y²=27?

Question

1486 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-22T18:46:25

#y = +-3#

#3color(blue)(y^2) =27" "larr# to isolate the #y^2, div 3# on both sides

#(3color(blue)(y^2))/3 =27/3#

#y^2= 9#

#y = +-sqrt9#

#y = +-3#

Answer 2 · 2018-03-22T18:51:39

y = 3 or y = -3

#3y^2 = 27# (divide both sides by 3)
#y^2 = 9# (take the square root of both sides)
#y = +-sqrt(9)#
#y = +-3#