1.

Q3. Evaluate (10p-r) X (10p+r). 1*​

Answer»

20P + (R)2

Explanation:

(10P -r)*(10p + r)

= 10p(10p+r) - r(10p+r)

= 20p + 10pr -10pr-(r)2

= 20p - (r)2

Hope it HELPS you.



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