Question

plese answer all the questions
class 9 maths ​

Answer 1

Answer:

hi

I can tell you identity used in this you can expand it by your own

i)( a-b)²= a²-2ab+b²

ii)(a+b)²=a²+2ab+b²

iii)(a-b)²=a²-2ab+b²

iv)(a+b)(a-b)=a²-b²

v)(a+b)(a-b)=a²-b²

Answer 2

Answer:

Here's the answer of your question.

Hope you like it.