Question

giai ho mik nha mik can gap

tim x

2^x+1-3=13

(x+1)³+3=30

Answer 1

2^x+1-3=13

2^x+1=13+3

2^x+1=16

2^x+1=2⁴

Vậy x+1=4

x=4-1=3

Vậy x=3

Answer 2

a) 2x+1-3=13

2x+1=13+3

2x+1=16

2x+1=24

Vậy x+1=4

x=4-1=3

Vậy x=3

b) (x+1)³+3=30

(x+1)³ = 30 - 3

(x+1)³ = 27 = 3³

=> x+1 = 3

x = 3 - 1

x = 2

Vậy x = 2

TICK MK NHA

Answer 3

2\(^{x+1}\) - 3 = 13

\(\Rightarrow2^{x+1}=16\) \(\Rightarrow2x.2=16\) \(\Rightarrow\) 2x = 8 \(\Rightarrow\) x = 4

( x + 1 ) \(^3\) + 3 = 30

\(\Rightarrow\) \(\)\(\left(x+1\right)^3=27\)

3\(^3\) = 27

\(\Rightarrow x+1=3\Rightarrow x=2\)