Answer with step by step explanation
Given that,
a = 2
b = 3
c = 1
To solve these expressions you have to replace a, b & c with 2, 3 & 1 respectively.
Let us solve these expressions.
1) 2ab + 3bc + 5ac
( 2 × 2 × 3 ) + ( 3 × 3 × 1 ) + ( 5 × 2 × 1 )
12 + 9 + 10
21 + 10
31
2) 2 ( a + bc ) + 4 ( ab + ac )
2 × ( 2 + 3 × 1 ) + 4 ( 2 × 3 + 2 × 1 )
2 × ( 2 + 3 ) + 4 ( 6 + 2 )
2 × 5 + 4 × 8
10 + 32
42
Let me know if you have any other questions. :)