(a) Expand and simplify (a×a) – (a - b)(a + b).
(b) Hence write down the value of
(6730×6730)...
![subject](/tpl/images/cats/geografiya.png)
Geography, 28.02.2021 15:40 ahmadali89
(a) Expand and simplify (a×a) – (a - b)(a + b).
(b) Hence write down the value of
(6730×6730) – 6728 x 6732 without using a
calculator.
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