<u>Answer with step by step explanation</u>
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.
<h3>1) 2ab + 3bc + 5ac</h3>
( 2 × 2 × 3 ) + ( 3 × 3 × 1 ) + ( 5 × 2 × 1 )
12 + 9 + 10
21 + 10
<u>31</u>
<h3>2) 2 ( a + bc ) + 4 ( ab + ac )</h3>
2 × ( 2 + 3 × 1 ) + 4 ( 2 × 3 + 2 × 1 )
2 × ( 2 + 3 ) + 4 ( 6 + 2 )
2 × 5 + 4 × 8
10 + 32
<u>42</u>
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