Evaluate, Using (A + B)(A - B)= A2 - B2. 4.9 X 5.1 - Mathematics

Evaluate, using (a + b)(a - b)= a² - b².
4.9 x 5.1

बेरीज

4.9 x 5.1
= (5 - 0.1) x (5 + 0.1)
= (5)² - (0.1)²
= 25 - 0.01
= 24.99.

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पाठ 4: Expansions - Exercise 4.1

पाठ 4 Expansions
Exercise 4.1 | Q 6.3

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