Math, asked by pankhurikanoo25, 9 months ago

Simplify : i) (p+q) (r+s) + (p-q) (r-s) - 2 (pr + qs).

Answers

Answered by deekshitha565

2

Answer:

(p+q)(r+s)+(p-q)(r-s)-2(pr+qs)

pr+ps+qr+qs+pr-ps-qr+qs-2pr+2qs

2pr+2qs-2pr+2qs

4qs

Answered by Abhilipsa5119

1

Step-by-step explanation:

pr+ps+qr+qs+pr-ps-qr+qs-2pr-2qs

=0

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