Question

Value of 149 sqaure - 148 square is

Answer 1

Answer:

value of 149×149=22201

value of 148×148=21904

according to question,

square of (149-148)

22201-21904=297

Value of 149 sqaure - 148 square is 297.

Answer 2

Answer:

ANSWER!

☆ Given -

• 149^2 - 148^2

☆ To find -

• Evaluation of this

☆ Solution -

149^2 - 148^2

(150- 1)^2 - ( 150- 2)^2

Using identity ( a- b)^2 = a^2 + b^2 - 2ab

[150^2 +1^2 - 2( 150) (1) ] - [ 150^2 + 2^2- 2(150)(2)]

[ 22500 + 1 - 300] - [ 22500+ 4 - 600]

22500 + 1 - 300 - 22500 - 4 + 600

22500- 22500 + 1 - 4 - 300 + 600

- 3 + 300

[ 297]

ALTERNATIVE METHOD

(149^2 )- ( 148^2)

a^2 - b^2 = (a+ b)( a-b)

(149 - 148 )(149 + 148 )

( 1) ( 297)

297

hope it helps u