What are the x-intercepts of ##y=x^2+2x-15##?

By setting it equal to zero,
##x^2+2x-15=0##
by factoring out,
##(x+5)(x-3)=0##
by setting each factor equal to zero,
##{(x+5=0 Rightarrow x=-5),(x-3=0 Rightarrow x=3):}##
Hence, the ##x##-intercepts are: ##x=-5,3##.
I hope that this was helpful.

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