How do you simplify the expression #1+7sqrt(z-1)# for #z=290#?
1 Answer
Feb 18, 2017
Explanation:
Substitute z = 290 into the expression.
#1+7sqrt(color(red)(290)-1)#
#=1+7sqrt289#
#=1+(7xx17)" since " sqrt289=17#
#=1+119#
#=120#
