Question

simplify (7+4√3) (7-4√3)​

Answer 1

Answer:

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Step-by-step explanation:

(a + b)(a - b) = a² - b²

(7 + 4√3)(7 - 4√3)

7² - (4√3)²

49 - (16 *3)

49 - 48 = 1

Answer 2

a^ 2 - b^ 2

49 - 48

1

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