If \(x = 1\) and \( y = 2,\) find \(3x + y\)
\[4\]
\[6\]
\[5\]
If \(a = 3\) and \( b = 4,\) find \(a^{2} – b \)
\[1\]
\[2\]
If \(x = 2,\) find \( x^{3} + 5 \)
\[32\]
\[13\]
\[23\]
If \(p = -3\) and \( q = 1,\) find \(pq \)
\[-3\]
\[3\]
\[-2\]
If \(a = 2\), \( b = 4\) and \(c = 6\), find \(\frac{bc}{2}\)
\[12\]
\[24\]
If \(a = 2\), \( b = 4\) and \(c = 6\), find \(3 a + b - c \)
\[16\]
\[30\]
If \(a = 2\), \( b = 4\) and \(c = 6\), find \({2b^2}\)
\[64\]
Find \( b – c\)
\[ -2\]
\[ 2\]
Find \( {b^2}-{c^2}\)
\[20\]
\[-20\]
\[-4\]
Find \(\frac{bc}{ac}\)
\[\frac{1}{2}\]