Solving Exponential Equations by Changing Base

Solve: 7^-x = 49

• x = 1

• x = -1

• x = 2

• x = -2

2^-m = 2^3m-3

• 4/3

• 3/4

• 2

• 1

Solve 3³ = (3²)^{2x + 1}

• x = ¼

• x = -¼

• x = ½

• x = -½

Solve for x:
3^2x = 27^{x - 4}

• x = 12

• x = 4

• x = -4

• x = 1

Solve for x:
(1/8)^x = 2³

• x=−3

• x=3

• x=−1

• x=1

Solve for x.

16^x+5 = 64^-2

• 1/2

• 8

• -8

• 2

Tags

CCSS.HSF.LE.A.4

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

• 17

• 27

• -7

• 23

Solve

• 2

• -2

• 3

• -3

Solve for x.

2^x = 4^x+1

• x = -2

• x = 2

• x = -3

• x = 3

Sovle for x.

5^{-3x - 1} = 25

• x = -1

• x = -4

• x = -3

• x = 1