Question

Evaluate :b^2 -9(b-1)^2,if b=1.1 (hint=1.1 =11/10)

Answer 1

refer above image for ur answer and click thanks button...
answer is 28/25 = 1.12

Answer 2

Answer:

1.12

Step-by-step explanation:

Given,

b=1.1

Solution= b²-9(b-1)²

( 11/10)² -9 (11/10-1)²

(121/100)-9(1/10)²

(121/100) -9 ( 1/100)

(121/100) - (9/100)

(112/100)

1.12

is the correct answer