Question

please help me in this question please answer me I am study in 8th standard ​

Answer 1

Step-by-step explanation:

$a) \: 68^{2} - \: 32^{2} = \: 4624 - 1024 \: = \: 3600$

Answer 2

Step-by-step explanation:

(68+32)(68-32)

(3 1/2+2 1/2)(3 1/2-2 1/2)

there is formula a square-b square is (a+b)(a-b)

hope that it will help you out