cpcalc 5.1.1

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

Sovle for x:
5^{-3x - 1} = 25

• x = -1
• x = -4
• x = -3
• x = 1

Solve 3³ = 3^{4x + 2}

• x = ¼
• x = -¼
• x = ½
• x = -½

Solve each equation. Select the closest answer.

• 4.5

• 1.5

• 1.8

• 5

Tags

CCSS.HSF.LE.A.4

What is the FIRST step to solving this equation?
 $-5\cdot10^{4x}=60$  

• take the LOG of both sides

• add 5 to both sides

• divide by -5 on both sides

• divide by 4 on both sides

Solve this equation.

 $4\cdot10^{2x}=40,000$  

• Undefined

• 1.5

• 2.301

• 2

Tags

CCSS.HSF.LE.A.4

Solve:
3^x-2 = 27^4x

• -2/11
• -2/3
• 2/11
• 2/3

Solve the following exponential equation:
 $9^{8-x}=27^{x-3}$  

•  $x=5$  

•  $x=-5$  

•  $x=\frac{1}{5}$  

•  $x=-\frac{1}{5}$  

Solve the following exponential equation:
 $2^x=4^{x+1}$  

•  $x=-2$  

•  $x=2$  

•  $x=-3$  

•  $x=3$  

solve for x.

 $3^{2x-1}\cdot3^4=3$  

• 1/2

• 5/8

• -1

• 8/5