Question

find the square of 11.4 without actual multiplication​

Answer 1

Answer:

Consider the given number.

42

We know that

(a+b)

2

=a

2

+b

2

+2ab

Therefore,

(40+2)

2

=(40)

2

+2

2

+2×40×2

(42)

2

=1600+4+160

(42)

2

=1764

Hence, this is the answer

Step-by-step explanation:

Plz mark as branilest

Answer 2

Answer:

$.$

Step-by-step explanation:

Consider the given number.

42

We know that

(a+b)

2

=a

2

+b

2

+2ab

Therefore,

(40+2)

2

=(40)

2

+2

2

+2×40×2

(42)

2

=1600+4+160

(42)

2

=1764

Hence, this is the answer.