If \(y=3ab+2 b^3 \) , what is y when a = 1 and b = 2?

If \(y=3ab+2 b^3 \) , what is y when a = 1 and b = 2?

Detailed Explanation

Substitute the given values for a and b into the equation and then evaluate to find y:

\(y=3ab+2 b^3 \)

\(y=3 \times 1 \times 2+2 \times 2^3 \)

\(y = 6 + 2(8)\)

\(y = 6 + 16\)

\(y = 22\).

\(y=3ab+2 b^3 \)

\(y=3 \times 1 \times 2+2 \times 2^3 \)

\(y = 6 + 2(8)\)

\(y = 6 + 16\)

\(y = 22\).