What is \(4.7 \times {5^3}\) ?

Explanation

\(4.7 \times {5^3} = 4.7(5 \times 5 \times 5) = 4.7 \times 125 = 587.5\)

\(\frac{10 !}{7 !}\) is equal to:

Evaluate the expression \(5a + 2b \times (3a - {b^2})\) , if a = –1 and b = 2.