Question

simplify (2+root3) (2-root3)​

Answer 1

Answer:

1......................

Step-by-step explanation:

(A+b) (A-b) =A^2-b^2=2^2-root3^2=4-3=1

Answer 2

$(2 + \sqrt{3} )(2 - \sqrt{3} ) \\ 2(2 - \sqrt{3} ) + \sqrt{3} (2 - \sqrt{3}) \\ 4 - 2 \sqrt{3} + 2 \sqrt{3} - 3 \\ 1$

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