21 Solving Log Equations 1

log₂(x + 2) + log₂x  = 3

• -4, 2
• -2, 4
• 2
• 1

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

log₅(4x-7)=log₅(x+5)

• 3
• 12
• 4
• 7

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Find the solution for  $-6\log_3\left(x-3\right)=-24$   

• 5

• 13

• 84

• -20

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

log_x27 = 3

• 9

• 3

• 2

• 4

Tags

CCSS.HSF.BF.B.5

log₈(4x+4) = 2

• 15

• 12

• 10

• 3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Solve:  $\log\left(10x\right)+\log\left(x-3\right)=2$  

• x = 5 and x = -2

• x = -2

• x = 5

• x = -10 and x = 10

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve:  $\log_7x-\log_73=2$  

• x = 21

• x= 49/3

• x = 49

• x = 147

Tags

CCSS.HSA.REI.B.3

CCSS.HSF.BF.B.5

Solve:  $\log_4^2\left(x\right)=9$  

• -12, 12

• 12

• 1/64, 64

•  64

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

CCSS.HSF.BF.B.5

Solve for all answers of x:        $\ln\left(x^2\right)=6$  

•  $e^3$  

•  $e^6,\ e^{-6}$  

•  $e^3,\ -e^3$  

•  $e^3,\ \frac{1}{e^3}$  

Tags

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve:  $\ln\left(x+2\right)-\ln3=2$  

•  $x=\frac{e^2}{3}-2$  

•  $x=3e^2-2$  

•  $e^2-\frac{2}{3}$  

•  $x=4$  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5