Question #dfd45

1 Answer
Nov 20, 2017

#chi =-4# and #chi=3# are solutions to this equation.

Explanation:

This question tests our understanding of how to create a result of zero using multiplication. The left hand side of the equation is basically two things multiplied with each other:

#color{red}((chi-3)) color{blue}((chi+4))=0#

We know that when you multiply two numbers together, the only way to get a result of zero is for one or both of the numbers to be zero to begin with. That implies that either factor being zero will satisfy the equation.

#color{red}(chi-3) = 0#
#=> chi=3#

or

#color{blue}(chi+4) = 0#
#=> chi=-4#

Therefore

#chi=-4# and #chi=3# are solutions to this equation.