Solving Exponentials

Solve for x:

4^x+2 = 64

• x = -16/9

• x = 1

• x = 8

• x = 7/6

Tags

CCSS.HSF.LE.A.4

Solve for x

• 0.75

• 3

• 0.667

• 1.5

Solve for x

• 3

• 4

• 9

• 27

Solve. When necessary round to the nearest hundredth.

 $4^x-6=10$  

Tags

CCSS.HSF.LE.A.4

Solve for x:
2^x+6=2⁵

• -1
• 11
• 1
• -11

Tags

CCSS.HSF.BF.B.5

 $\left(\frac{1}{5}\right)^{\left(x-2\right)}=125^{\left(2x-5\right)}$  
What would be the BEST first step in solving the equation?

• Divide by 125

• Use expansion to "bring the exponents down"

• Set the exponents equal to each other

• Rewrite the bases as powers of 5

 $Solve\ 2^{4x}=8$  

• 1/2

• 3/4

• 4/3

• 2

Solve $2^{\left(x+3\right)}=16$  

• -1

• 1

• 7

• 2

Tags

CCSS.HSF.LE.A.4