Question

using identities evaluate the following - 195x205​

Answer 1

Answer:

(a-b) (a+b)=a^2+b^2

=(200-5) (200+5)

=200^2-5^2

=40000-25

=39975

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Answer 2

Answer:

39975

Step-by-step explanation:

(a-b) (a+b)=a^2+b^2

=(200-5) (200+5)

=200^2-5^2

=40000-25

=39975