Question

Apply standard algebraic identities to find the value of the following

195×205

Answer 1

Step-by-step explanation:

(200-5) (200+5)

(a-b)(a+b)=a square - b square

(200-5) (200+5)=(200) square -(5) square

=40000 - 25

=39975

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Answer 2

Answer:

39975

Step-by-step explanation:

(200-5)(200+5)

$200 ^{2} - 5 {}^{2}$

40000-25

39975