A binary operation Δ is defined by a Δ b = a + 3b +…

A binary operation Δ is defined by a Δ b = a + 3b + 2.
Find (3 Δ 2) Δ 5

Correct Answer: Option C

Explanation

a Δ b = a + 3b + 2

(3 Δ 2) Δ 5 = (3 + 3(2) + 2) Δ 5

= 11 Δ 5

= 11 + 3(5) + 2

= 28

There is an explanation video available below.