9/21 - Solving Exponential Equations Practice

What is your first step in solving? 2^x - 5 = 12

• Multiply by 5 on both sides

• Add 5 to both sides

• log both sides

• Divide 2 on both sides

How would you write this using logs to solve? 4^x = 19

• log4x = log19

• logx = log19/4

• xlog4 = log19

• 4logx = log19

How would you write this using logs to solve? 5^x + 7 = 32

• xlog5 = 25

• xlog7 = 27

• log5x = log25

• xlog5 = 32/7

How would you write this using logs to solve?

2^x-1 + 5 = 20

• xlog2 = log16

• log(2x - 1) = log15

• xlog2 = log5

• (x - 1)log2 = log15

Solve the exponential function using a LOG.
3^x = 30

• x = 10
• x = 2.98
• x = 3.10
• x = 4.22

Tags

CCSS.HSF.BF.B.5

Use a LOG to solve the Exponential Function.
7^x = 29

• x = 4
• x = 1.73
• x = 4.14
• x = 2.35

Use a LOG to solve the exponential function: 4^x = 19

• x = 2.1

• x = 4.8

• x =5.2

• x = 1.4

Solve

2³ⁿ = 4

• 2

• 3

• 2/3

• 4

Tags

CCSS.6.EE.B.7

 $9^{x-2}=1$  

• No Solution

• 2

• -2

• All Real Numbers

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.LE.A.1

Solve for x:
8^x+1= 3

• 0.528
• 0.893
• -0.472
• 1.893

Tags

CCSS.HSF.LE.A.4