Question

Solve this correctly and I'll mark you as brainlist​

Answer 1

Answer:

option B is correct

Step-by-step explanation:

Area: 16x2 + a + 12  

= 25a2 – 20a – 15a + 12  

= 5a(5a – 4) – 3(5a – 4)  

= (5a -4) (5a – 3)  length × breadth  

= Area of rectangle (5a – 4)  (5a – 3)

= 25a2 – 35a + 12  

∴ Length = (5a – 4)  

Breadth = (5a – 3)  

(ii) Area : 35y2 + 13y – 12  

Area of Rectangle – Length × Breadth 35y2 + 13y – 12

35y2 + 28y – 15y  

7y(5y + 4) – 3(5y + 4)  

(7y – 3) (5y + 4)  

∴ Length = (7y – 3)  

Breadth = (5y + 4)