How do you solve #3x^2-6=282#?

2 Answers
Aug 7, 2016

Answer:

#x=+-4sqrt6#

Explanation:

#3x^2-6=282#
or
#3x^2=282+6#
#3x^2=288#
or
#x^2=288/3#
or
#x^2=96#
or
#x=sqrt96#
or
#x=+-4sqrt6#

Aug 7, 2016

Answer:

#x = +-4sqrt6#

Explanation:

Although this is a quadratic equation, there is no #x# term, so we can use a different method of solving it without making everything equal to 0.

#3x^2 = 288#

#x^2 = 96#

#x = +-sqrt96#

#x = +-sqrt(2xx2xx2xx2xx2xx3)#

#x = +-4sqrt6#