Question

Please Find the area of the shaded region​

Answer 1

→ Find the area of shaded region

= Area of whole rectangle – small rectangle

= LB × lb

= (4x + 3) (4x - 3) – (8x + 9) (2x - 1)

= (4x)²– (3)²– 16x² – 8x + 18x – 9

= 16x² – 18 – 16x² + 10x

= 10x – 18

or, 10x = 18

or, x = 18/10

x = 9/5