If b = a + c and b = 3, then ab + bc = ?

If b = a + c and b = 3, then ab + bc = ?

A \(\sqrt 3 \)

B 3

C \(3\sqrt 3 \)

D 9

Solution

Correct Answer: Option D

Solution:

দেয়া আছে, b = a + c

=> a + c = 3

প্রদত্ত রাশিমালা = ab + bc

= b(a+c)

= 3 \( \times \) 3

= 9