What is the value of #54-4a^2+3b^3# when #a=-2# and #b=4#?
1 Answer
Sep 30, 2016
#=230#
Explanation:
#=54-4a^2+3b^3#
#a=-2#
#b=4#
#=54-4(-2)^2+3(4)^3#
#=54-4*4+3*64#
#54-16+192#
#246-16=230#
