Math Practice Online: MathScore.com

Math Practice Online > free > lessons > New York > 7th grade > Roots Of Exponential Expressions

If your child needs math practice, click here.

These sample problems below for Roots Of Exponential Expressions were generated by the MathScore.com engine.

Sample Problems For Roots Of Exponential Expressions

Complexity=5, Mode=exponent

Find the exponent.
1.  
5  4 20
 = 4
2.  
7  4 21
 = 4

Complexity=8, Mode=value

Find the value of the given expression.
1.  
8  4 16
 =  
2.  
8  3 24
 =  

Complexity=8, Mode=variable

Simplify the given expression. Use '^' to indicate 'to the power of' and omit any 1's as coefficients in front of variable expressions.
1.  
7  8 14x 35
 =  
2.  
6  5 24x 60
 =  

Answers

Complexity=5, Mode=exponent

Find the exponent.
#Correct AnswerYour Answer
1
5  4 20
 = 4
Solution
5  4 20
= (420) (1/5) = 4(20 * 1/5) = 4( 20/5) = 44
#Correct AnswerYour Answer
2
7  4 21
 = 4
Solution
7  4 21
= (421) (1/7) = 4(21 * 1/7) = 4( 21/7) = 43

Complexity=8, Mode=value

Find the value of the given expression.
#Correct AnswerYour Answer
1
8  4 16
 =  
Solution
8  4 16
= (416) (1/8) = 4(16 * 1/8) = 4( 16/8) = 42 = 16
#Correct AnswerYour Answer
2
8  3 24
 =  
Solution
8  3 24
= (324) (1/8) = 3(24 * 1/8) = 3( 24/8) = 33 = 27

Complexity=8, Mode=variable

Simplify the given expression. Use '^' to indicate 'to the power of' and omit any 1's as coefficients in front of variable expressions.
#Correct AnswerYour Answer
1
7  8 14x 35
 =  
Solution
7  8 14x 35
= (8 14x 35)(1/7) = 8(14 * 1/7) x(35 * 1/7) = 8(14/7) x(35/7) = 82x5 = 64x 5
#Correct AnswerYour Answer
2
6  5 24x 60
 =  
Solution
6  5 24x 60
= (5 24x 60)(1/6) = 5(24 * 1/6) x(60 * 1/6) = 5(24/6) x(60/6) = 54x10 = 625x 10

MathScore.com

Copyright Accurate Learning Systems Corporation 2008.
MathScore is a registered trademark.