Question

The length and breadth of a rectangle are (3a - 4b) cm and (5b + 2a) cm. (i) Find the area of the rectangle.  a) 6 a^2+7ab+20 b^2 b) 6 a^2 + 7ab - 20 b^2 c) 6 a^2 - 7ab - 20 b^2 d) 6 a^2 - 7ab + 20 b^2​

Answer 1

Answer:

The length and breadth of a rectangle are (3a - 4b) cm and (5b + 2a) cm. (i) Find the area of the rectangle.  a) 6 a^2+7ab+20 b^2 b) 6 a^2 + 7ab - 20 b^2 c) 6 a^2 - 7ab - 20 b^2 d) 6 a^2 - 7ab + 20 b^2