Precal 1st Semester Exam Review Part A

Classify Numbers

100

N represents ?

Natural Numbers

200

The letter that represents Integers

Z

300

All Rational numbers can be written as this.

What is a fraction

400

Classify this number:  

 - 1/2

Real, Rational

500

Pi is classified as this.

What is an Irrational number.

Simplify Expressions

100

2(x+4)

2x+8

200

-3(Z - 7)

-3Z+21

300

4(X+2) + 7X

11X + 8

400

2(2x-5)+8X

12X - 10

500

3(-6X - 7) - 2(7Y - 9Z)

-18X - 21 -14Y + 18Z

Exponents

100

2^3 x 3^2

72

200

Z^3 x Z^4

Z^7

300

(2/3)^4 in fraction form

16/81

400

(2xz-3zx/2.56)^0

1

500

(2x/-5y)^ -3

-125y^3 / 8x^3

Roots and Powers

100

4th root of 256

What is 4

200

16^1/4

2

300

Simplify the cube root of 72

What is 2 on the cube root of 9

400

13 sqrt 10 + 12 sqrt 10

25 sqrt 10

500

With out a calculator: 64^2/3

What is 16

Polynomials

100

( x + 2)²

What is x² + 4x + 4

200

(-5x² + 5y)²

25X⁴ - 50X²y + 25y²

300

(-3t⁶u⁴)(5t⁸u⁶)

- 15t¹⁴u¹⁰

400

sqrt 2(sqrt 32 - sqrt 3)

8 - sqrt6

500

(x - 5y)(x² - 2xy + 3y²)

x³ - 7x²y + 13xy² - 15y³