Question

Using suitable identity find the value of
(i) 105 × 95

Answer 1

Answer:

9975

Step-by-step explanation:

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

(100+5) × (100-5)

100^2 - 5^2

10000 - 25

9975

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Answer 2

$(a + b) (a - b) = a^{2} - b^{2}$

= 105 × 95

= (100 + 5) (100 - 5)

= $(100)^{2} - (5)^{2}$

= 10000 - 25

= 9975