Solve Log & Exp Equations

Solve for x.

log₂(x + 2) + log₂x = 3

• -4, 2

• -2, 4

• 2

• 1

Solve for x.

14^4-6x = 11

• 5

• 0.52

• 0.12

• 1

Tags

CCSS.7.EE.B.4A

Solve for x.

9(e^x) - 31 =23

• 1.79

• 4.21

• -3.5

• 1.27

Solve for x.

log(x) + log(x + 3) = 1

• 5

• -2

• -5

• 2

Solve for x.

ln(x + 8) - ln (8) = 3

• 152.68

• 188.77

• 4.24

• 8.01

Solve for x.

log₅(x + 4) - log₅x = log₅6

• $\sqrt{2}$
  

• $-2$

• $3$
  

• $\frac{4}{5}$

Solve for x.

 $\log_2(x^2-6)=\log_2(2x+2)$ 

• -2

• 4

• -2, 4

• no solution

Solve for x.

 $\log\left(x+2\right)=2$ 

• -2

• 0

• 50

• 98

Tags

CCSS.HSF.BF.B.5

 $10\cdot6^{9x}+7=30$  

Solve for x.

• 0.078

• 0.040

• 0.093

• 0.052

 $\log_5x+\log_53=3$  

Solve for x.

•  $45$  
  

•  $\frac{125}{3}$  
  

•  $50$  
  

•  $56$