Tolong bantu jawab,,,,,

Tolong bantu jawab,,,,,

Jawaban:

11. ⁵√3²

12. 8 ⅓ x 2² = 2 x 4 = 8 (D)

13. 2√2 + 2√32

= 2√2 + 2.4√2

= 2√2 + 8√2

= 10√2 (D)

14. 3(2 – √5)

15. 7,8 x 10-⁷(A)

16.

${8}^{3x + 2} = {2}^{2x + 1} \ ({2}^{3})^{3x + 2} = {2}^{2x + 1} \ {2}^{6x + 6} = {2}^{2x + 1} \ 6x + 6 = 2x + 1 \ 4x = - 5 \ x = frac{ - 5}{4}$

17. —

18.

$x = frac{q + - sqrt{ {q}^{2} - 4pr} }{2p}$

19. x²- 50 = -1

x² – 49 = 0

(x + 7) (x – 7) = 0

x = -7 atau x = 7 (C)

20. x² + 6x – 16

(x + 8) ( x – 2) = 0

x = -8 atau x = 2 (C)

Jawaban:

ngak ngerti weehgghhhh