Question

Please give answer
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Answer 1

Answer:

11. answer is 5

12. answer is 5

13. answer is x^3

14. answer is 16

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Answer 2

Answer:

11. {5(8^⅓+27^⅓)³}^¼

8^⅓ = ³√2×2×2

= 2

27^⅓= ³√3×3×3

= 3

{5(2+3)³}^¼

{5(5)³}^¼

law- a^m ×a^n = a^m+n

(a^m)^n = a^mn

{5^(1+3)}^¼

(5⁴)^1/4

= 5(4×1/4)

=5¹

= 5.(answer)

14. (x-1)³= 8

taking cube root on both sides

³√(x-1)³= ³√8

x-1= 2

x= 1+2

x= 3

(x+1)²= ?

x+1= 3+1

x+1 = 4

= (4)²

= 16(answer)