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Help 39 point pic below Math

Help 39 point pic below Math
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3 votes
Help 39 point pic below Math

Help 39 point pic below Math-example-1
User Ellockie
by
9.4k points

1 Answer

11 votes

Explanation:

Remember the Difference of Squares:

a² - b² = (a + b)(a - b)

Therefore (√20 - √3)(√20 + √3)

= (√20)² - (√3)² = 20 - 3 = 17. (C)

User VenomVendor
by
8.2k points
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