7th Math Ch. 4 Review 2021-2022

4-2 Exponents

100

3^3

3^3 = 9

200

3(10 - 7)^2

3(10 - 7)^2 = 27

300

Evaluate for m = 3

7m^2-5

58

400

Evaluate for a = -4

(2a + 1)^2

49

500

Evaluate for x = -3

-7x^3-5

184

4-4 Simplifying Fractions

100

Write in simplest form

3/15

1/5

200

Write in simplest form

16/52

4/13

300

Write in simplest form

(25m)/(5m)

5

400

Write in simplest form

(9x^2)/(27x)

x/3

500

(39x^5y^2)/(143x^9y)

(3y)/(11x^4)

4-7 & 4-8 Exponents and Multiplication and Division

100

2^4 * 2^3

2^4 * 2^3=128

200

4^7/4^2

4^7/4^2 = 1024

300

b * c^2 * b^6 * c^2

b * c^2 * b^6 * c^2 =  b^7c^4

400

(28xy^7)/(32xy^12)

(28xy^7)/(32xy^12) = 7/(8y^5)

500

3x^2•(4x^2)^3

192x^8

5-9 Powers of Products and Quotients

100

Simplify the expression

(2d)^4

16d^4

200

Simplify the expression

(x/3)^2

x^2/9

300

Simplify the expression

(-3(2))^2

36

400

Simplify the expression

(-1/2)^3

-1/8

500

Simplify the expression

((2a)/c^2)^4

(16a^4)/c^8