soniyarose79 soniyarose79

15-02-2021
Mathematics

contestada

the value of (a+b)² - (a-b)² is

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AmayaAcharya AmayaAcharya

15-02-2021

Answer:

4ab

Step-by-step explanation:

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

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

=a^2 + 2ab + b^2 - a^2 + 2ab - b^2

=2ab + 2ab

=4ab

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