Question

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Answer 1

Answer:

1. √7 => √7×√7 = 7

2. √5 => 3√5×√5 = 3×5 = 15

3. √8 => -3√8×√8 = (-3)(8) = -24

4. √8 + 5 => (√8+5)(√8-5)=8 - 25 =-17

5. √10 + √3 =>(√10 - √3)(√10-√3)=10-3=7