How do you solve #\frac { 5q ^ { 2} } { 6} - \frac { q ^ { 2} } { 3} = 72#?

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Answer 1 · 2016-11-19T09:34:27

#q=+-12#

#(5q^2)/6-q^2/3 = 72#

Multiply through by 6:

#5q^2 - 2q^2 = 72xx 6#

#3q^2= 72xx6#

#q^2 = 144#

#q= sqrt144#

#q= +-12#