Question

plz solve it plz its so urgent ​

Answer 1

Answer:

hey here is your solution

pls mark it as brainliest pls

I have solved only Q2 and 3

Q 2 is solved in above pics

Step-by-step explanation:

$Q.3 \\ so \: here \: 100 {}^{2} - 98 {}^{2} \: is \: in \: form \: a {}^{2} - b {}^{2} \\ so \: \: a {}^{2} - b {}^{2} = (a + b)(a - b) \\ thus \: then \\ 100 {}^{2} - 98 {}^{2} = (100 + 98)(100 - 98) \\ = 198 \times 2 \\ = 396$

$100 {}^{2} - 98 {}^{2} = 396$