01/20-21/22 Review

Solve log(x) + log(x+3) = 1

• 5
• -2
• -5
• 2

log₅(4x-7)=log₅(x+5)

• 3
• 12
• 4
• 7

Solve: 9^8-x = 27^x-3

• x = 5
• x = -5
• x = 1/5
• x = -1/5

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

To solve, 16^5x = 64^x+7, what would be the correct set-up?

There is more than one correct answer.

• 4^4(5x)=4^16(x+7)

• 8^2(5x)=8^8(x+7)

• 4^2(5x)=4^3(x+7)

• 2^4(5x)=2^6(x+7)

• 2

• 1

• -2

• -1

Solve 

 $\sqrt{3x+10}=x+4$  

• x = -2

• x = -2, 3

• x = -2, -3

• x = -3

In order to multiply powers with the same base, we add their exponents. 

• True 
• False

Simplify the expression: 3x²⋅x²=

• 3x
• 3x²⁺²
• 3x⁴

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