What is #a^2 - 8abc - c^2# for #a=-5#, #b =9#, and #c=4#?
1 Answer
Aug 5, 2017
Explanation:
#"substituting the given values into the corresponding"#
#"variables"#
#(-5)^2-(8xx-5xx9xx4)-(4)^2#
#=25-(1440)-16#
#=25+1440-16#
#=1449#
