You performed operations on integers.

• Write verbal expressions for algebraic expressions.

• Write algebraic expressions for verbal expressions.

• algebraic expression

• variable

• term

• factor

• product

• power

• exponent

• base

Write Verbal Expressions

A. Write a verbal expression for 8x2.

Answer: eight times x squared

Write Verbal Expressions

B. Write a verbal expression for y5 – 16y.

Answer: the difference of y to the fifth power and 16 times y

A. 7 times a

B. 7 times the product of 4 and a

C. 7 times a to the fourth power

D. 4 times a to the seventh power

A. Write a verbal expression for 7a4.

A. the sum of 3 and x

B. the product of x squared and 3

C. the sum of x and 3 squared

D. the sum of x squared and 3

B. Write a verbal expression for x2 + 3.

Write Algebraic Expressions

A. Write an algebraic expression for 5 less than a number c.

The words less than suggest subtraction.

Answer: Thus, the algebraic expression is c – 5.

a number c less five

c – 5

Write Algebraic Expressions

B. Write an algebraic expression for 9 plus the product of 2 and d.

Plus implies add, and product implies multiply.

Answer: The expression can be written as 9 + 2d.

Write Algebraic Expressions

C. Write an algebraic expression for two fifths of the area a.

The word of implies multiply.

A. 9 – h

B. 9h

C. 9 + h

D. h – 9

A. Write an algebraic expression for nine more than a number h.

A. 6 – 4x

B. (6 – 4) + x

C. 6 + 4x

D. 6x – 4

B. Write an algebraic expression for the difference of 6 and 4 times a number x.

C. Write an algebraic expression for one half the size of the original perimeter p.

A. 2p

B.

C. p2

D. p

Write an Expression

ENTERTAINMENT Mr. Nehru bought two adult tickets and three student tickets for the planetarium show. Write an algebraic expression that represents the cost of the tickets.

Answer: The cost of the tickets is represented by 2a + 3c.

Let a be the cost of each adult ticket and c be the cost of each student ticket. The cost of the adult tickets is represented by 2a and the cost of the student tickets is represented by 3c.

A. 20 – p

B. p – 20

C. 20 + p

D. 20 p

MONEY Lorenzo bought a bag of peanuts that cost p dollars and he gave the cashier a $20 bill. Write an expression for the amount of change that he will receive.