Question

plz help me with this​

Answer 1

Answer:

$(2 \sqrt{3) {?}^{2} }$

Step-by-step explanation:

I tried a lot but I got 1st one

Answer 2

Answer:

$(i) ({2 \sqrt{3} })^{2} =2 \sqrt{3} \times 2 \sqrt{3} = 4 \times 3 = 12 \\ (ii) ( { \frac{3}{2} \sqrt{2} })^{2} = \frac{3}{2} \sqrt{2} \times \frac{3}{2} \sqrt{2} = \frac{9}{4} \times 2 = \frac{9}{2} \\ (iii) {(5 + \sqrt{3} })^{2} = {5}^{2} + 2 \times 5 \times \sqrt{3} + ( { \sqrt{3} })^{2} \\ = 25 + 10 \sqrt{3} + 3 \\ = 28 + 10 \sqrt{3} \\ (v) {(3 + 2 \sqrt{5} })^{2} = {3}^{2} + 2 \times 3 \times 2 \sqrt{5} + ( {2 \sqrt{5} })^{2} \\ = 9 + 12 \sqrt{5} + 4 \times 5 \\ = 9 + 12 \sqrt{5} + 20 \\ = 29+ 12 \sqrt{5} \\ (vi) {( \sqrt{5} + \sqrt{6} })^{2} = {( \sqrt{5} })^{2} + 2 \times \sqrt{5} \times \sqrt{6} + { (\sqrt{6} })^{2} \\ = 5 + 2 \sqrt{5 \times 6} + 6 \\ = 11 + 2 \sqrt{30} \\ (vii) ({\frac{3}{2 \sqrt{2} } })^{2} = \frac{3}{2 \sqrt{2} } \times \frac{3}{2 \sqrt{2} } = \frac{9}{4 \times 2} = \frac{9}{8}$