Precal Solving Exponential Equations with the Same Bases

Solve for x using the same base method.
3^x-20 = 27

• 17
• 27
• -7
• 23

36^2x = 6^3x-7

• 7

• 7/5

• -5/7

• -7

Solve: 2^x = 4^x+1

• -2
• 2
• -3
• 3

Solve for x:

5^{x+ 2} = 1/125

• -1

• -6/7

• -5

• 4

Tags

CCSS.HSF.LE.A.4

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

Solve 4^2x+3 = 1

• x = -3/2

• x = - 2/3

• x = 1

• x = - 1

Solve the exponential equation:

3^2-2x = 81

• 1

• 5/2

• -1

• -2/5

• 9/4

• -2

• 33/16

• 2

To solve 8 = 2^5x+7, you would need to re-write 8 using what as your base?

• 8

• 4

• 2

• Cannot be determined

Solve for x:

125 = 5^-x+6

• 3

• -3

• 6

• -6