Test I Review

Algebraic Expressions

100

What does y equal to when x=2.

y=7+4(10-x)

y=39

200

What does y equal to when x=-4

y=2+2(5-x)²

y=164

300

What does y equal to when x=1/2

y=1+3x²

y=7/4

400

What is the coefficient, variable, constant, and exponent of the following equation?

y=2x+1

Coefficient is 2

Variable is x

Constant is 1

Exponent is 1

500

What is the coefficient, variable, constant, and exponent of the numerator of the following equation?

y=(2x+5)/(6x)

Coefficient is 2

Variable is x

Constant is 5

Exponent is 1

Exponents and Scientific Notation

100

Write this is scientific notation

0.0025

2.5x10^-3

200

Write this in scientific notation

2500000

2.5x10⁶

300

What is the base, coefficient, and exponent of the following expression?

3x⁵

Base is x

Coefficient is 3

Exponent is 5

400

What does the following equal to?

1/x^-4

x⁴

500

What does (120-20/26-164)⁰ equal to?

1 :)

Radicals and Rational Exponents

100

What is the index and radicand?

cbrt(120)

Index is 3

Radicand is 120

200

Convert to Radical form

120^2/3

cbrt(120²)

300

Convert to exponent form

sqrt(32⁵)

32^5/2

400

What does the following equation equal to

sqrt(20)+sqrt(5)

3sqrt(5)

500

What does the following equation equal to

sqrt(16)/sqrt(4)

2

Polynomials and Factoring

100

What does x equal to?

x²-36

x=6, -6

200

Factor the following equation

9x(x+2)-3(x+2)

(9x-3)(x+2)

300

FOIL the following expression

(2x-4)(3x+2)

(6x²-8x-8)

400

Find the greatest common factor and simplify

14x²-21x

7x(2x-3)

500

Factor the following trinomial

x³-3x²-18x

x(x+3)(x-6)

Rational Expressions

100

Simplify

(x²-4)/(x-2)

(x+2)

200

Simplify

(x²+5x+6)/(x²-4)

(x+3)/(x-2)

300

What is the coefficient of the highest exponent?

(4x⁶-5x⁷+2x²)/(2x⁵-3)

-5

400

What can x not be equal to?

2x/(x-4)

4

500

What is the solution of the following expression?

(32x)/(x-5)

All real numbers except 5