Question

evaluate 95× 94 without multiplying directly​

Answer 1

Question :

➨ Evaluate 95 x 94

Solution :

95 can be written as 100 - 5

94 can be written as 100 - 6

Now

➨ ( 100 - 5 ) ( 100 - 6 )

By using identity :

➨ ( x + a ) ( x - b ) = x² + ( a + b )x + ab

• a = - 5
• b = - 6

By Substituting value in formula

➨ ( 100 )² + ( - 5 - 6 ) * 100 + ( - 5 ) * ( - 6 )

➨ 10000 + ( - 11 ) * 100 + 30

➨ 10000 - 1100 + 30

➨ 8900 + 30

➨ 8930

Answer 2

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