If and , what is the numerical value of the product ?

Answer and explanation

Correct answer: A. 21

  1. Step 1: Use the algebraic identity: .
  2. Step 2: Substitute known quantities: .
Answer
21.
Why not the others: '18' results from subtracting 58 from 94; '24' computes ; '16' computes .

Practise more Advanced Algebra, Geometry and Data Analysis.

Free questions with an explanation for every one, and full timed Qudurat GAT (Saudi Arabia) mock tests.