Question

Using the identity , evaluate the following -- --- 10.5 x 9.5​

Answer 1

10.5 can be written as (10 + 0.5) and 9.5 can be written as (10 – 0.5)

10.5 x 9.5 = (10 + 0.5)(10 – 0.5)

(10 + 0.5)(10 – 0.5) = (10)² - (0.5)²

(10 + 0.5)(10 – 0.5) = 100 – 0.25

(10 + 0.5)(10 – 0.5) = 99.75

10.5 x 9.5 = 99.75

Hope it helps you.

Answer 2

Step-by-step explanation:

THE ANSWER IS 99.75

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