Question

Evaluate 3(a + b + c)2 for a = 2, b = 3, and c = 4.

Answer 1

so

if
a=2
b=3
c=4

what is a+b+c ??

Answer 2

remember PEMDAS

the first step ( I gave above ) is P for Parenteses - so work out what's in the brackets

the second step is E for exponents so do the ^2 (i.e. square the value in the brackets)

then do M for MUltiplication so multiply the result of the square by 3

Answer 3

3(2+3+4)
Is what you need to solve.