How do you solve #-9q ^ { 2} + 77= 78#?

1 Answer
Apr 17, 2018

q= +/- (1/3i)

Explanation:

Step 1: Subtract seventy-seven from both sides of the equation

#-9q^2#=1

Step 2: Divide both sides by #nine

#q^2#=#-1/9#

#square root# both sides

there is a #positive# and negative solution

q= +/- #square root#(1/3i)