Question

(√3×5 + √3 √5)×√3×5 = 5

Answer 1

Answer:

(3√(5) - 5√(2))(3√(5) + 5√ (2)) It is of form (a - b)(a + b) = a2 - b2 (3√(5)) 2 - (5√(2))2 9(5) - 25(4) 45 - 100 = - 54.

Answer 2

Answer:

$( \sqrt{3} \times 5 + \sqrt{3 } \times \sqrt{5} ) \times \sqrt{3} \times 5 \\ (5 \sqrt{3} + \sqrt{15} )(5 \sqrt{3} ) \\ 75 + 5 \sqrt{45} \\ 75 + 5 \sqrt{9 \times 5} \\ 75 + 5 \times 3 \sqrt{5} \\ 75 + 45 \sqrt{5}$