Math, asked by manojsinghnirsha1234, 4 hours ago

(v) (p + 9) (r + s) + (p - 9) (r - s) - 2 (pr + qs)

Answers

Answered by gauravmnjaju

0

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

Step-by-step explanation:

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Answered by pandeymunni403

1

Step-by-step explanation:

(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

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