Question

pls answer this question with full solution​

Answer 1

Step-by-step explanation:

1. (3-√5)²

(3)²-2×3×√5+(√5)²{by using identity (a-b)²}

9-6√5+5

14-6√5

it is irrational number as it can't be written in the form of p/q

2. (7-√7)(7+√7)

(7)²-(√7)² {by using identity a²-b²}

49-7

42 or 42/1

it is a rational number as it can be written in the form of p/q

3. (2√3+3√2)² {by using identity (a+b)²}

(2√3)²+2×2√3×3√2+(3√2)²

4×3+12√6+9×2

12+12√6+18

30+12√6

it is irrational number as it can't be written in the form of p/q

4. (2√3-3√2)(2√3+3√2)

(2√3)²-(3√2)² {by using identity a²-b²}

4×3-9×2

12-18

-6 or-6/1

it is a rational number as it can be written in the form of p/q

5. 5√3×√12

5√36

5×6 {√36=6}

30

it is a rational number as it can be written in the form of p/q

hope it helps.

plz mark this answer as brainliest