Question

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Answer 1

Step-by-step explanation:

Q.(1)

Ans. 15x * 11x = 13 * 2145

x² = 13*2145/165

x² = 13*429/33

x² = 13*13

x = 13

The numbers are

first one = 15(13) = 195

Second one = 11(13) = 143

Q.(2)

Ans. (2√45 + 3√20)/2√5

(2*3√5 + 3*2√5) / 2√5

(6√5 + 6√5) / 2√5

12/2 = 6

6 is a rational number .