Question

3 times the sum of r and d squared minus 2 times the sum of r and d squared

Answer 1

We have to write the following statement in terms of expression

⇒ 3 times the sum of r and d squared minus 2 times the sum of r and d squared

⇒3×(r+d)²-2×(r+d)²=y

→y=(r+d)²