Question

(root 3 +root 7)(root 3 -root 7) calculated it​

Answer 1

Answer:

The answer is 4

Step-by-step explanation:

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Answer 2

(a+b)(a-b) = a^2 - ab + ab -b^2 = a^2 - b^2, the famous formula for the difference of two squares.

so √3 sq - √7 sq

= 3-7

= -4

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