plis jawab ya kkku kasi 20 poin deh​

[tex] \frac{2 \sqrt{2} + \sqrt{7} }{3 \sqrt{2} + 2 \sqrt{7} } \\ = \frac{2 \sqrt{2} + \sqrt{7} }{3 \sqrt{2} + 2 \sqrt{7} } \times \frac{3 \sqrt{2} - 2 \sqrt{7} }{3 \sqrt{2} - 2 \sqrt{7} } \\ = \frac{2 \sqrt{2} + \sqrt{7} (3 \sqrt{2} - 2 \sqrt{7} )}{(3 \sqrt{2}) {}^{2} - (2 \sqrt{7}) {}^{2} } \\ = \frac{6 \times 2 + 3 \sqrt{14} - 4 \sqrt{14} - 2 \times 7 }{18 - 28} \\ = - \frac{12 - \sqrt{14} - 14}{10} \\ = - \frac{ \sqrt{14} - 2 }{10} [/tex]

[tex] \sf \frac{2 \sqrt{2} + \sqrt{7} }{3 \sqrt{2} + 2 \sqrt{7} } \times \frac{3 \sqrt{2} - 2 \sqrt{7} }{3 \sqrt{2} - 2 \sqrt{7} } [/tex]

[tex] \sf = \frac{6 \sqrt{2} - 4 \sqrt{14} + 3 \sqrt{14} - 2 \sqrt{49} }{9 \sqrt{4} - 4 \sqrt{49} } [/tex]

[tex] = \sf \frac{6 \sqrt{2} - 1 \sqrt{14} - 2.7 }{9.2 - 4.7} [/tex]

[tex] = \sf \frac{6 \sqrt{2} - 1 \sqrt{14} - 14 }{18 - 28} [/tex]

[tex] = \sf{ \color{red}{ \frac{6 \sqrt{2} - \sqrt{14} - 14}{10} }}[/tex]

Jawaban:

B. menang melawan Belanda di semarang

[tex] {2}^{5} \times {2}^{8} \div {2}^{6} \\ = {2}^{5 + 8 - 6} \\ = {2}^{13 - 6} \\ = {2}^{7} \\ = 128[/tex]

1. (+) They are junior high school

(-) They are not junior high school

(?) Are they junior high school?

2. (+) Elisa is my new girlfriend

(-) Elisa is not my new girlfriend

(?) Is Elisa my new girlfriend ?

3. (+) They are in the classroom

(-) They are not in the classroom

(?) Are they in the classroom?

4. (+) Ema likes pizza

(-) Ema doesn't like pizza

(?) Does Ema like pizza?

5. (+) We have a meeting tomorrow morning

(-) We don't have a meeting tomorrow morning

(?) Do we have a meeting tomorrow morning?

Penjelasan:

Semoga lancar