How do you simplify #5(4+7)=20+35# using PEMDAS?
1 Answer
Jul 6, 2016
55
Explanation:
PEMDAS represents the 'initial' letters being used in
#color(blue)"order of operation"# for a mixed operation expression.P - Parenthesis (brackets)
E - Exponents (powers)
M - Multiplication
D - Division
A - Addition
S- SubtractionIn this expression
#color(red)"P"cancel(E)color(red)"M"cancel(D)cancel(A)cancel(S)# we only have the 2 operations
#color(red)"P"" and "color(red)"M"# Evaluating Parenthesis : ( 4 + 7 ) = 11
Evaluating Multiplication :
#5xx11=55#
#rArr5(4+7)=55# Which agrees with the
#color(blue)"distributive property"# you have included in the question
#rArr 5(4+7)=(5xx4)+(5xx7)=20+35=55#