Algebra

 Which real numbers are equal to their cubes?

 Write 4*10-2 as a decimal.

 Write 0.12*10-3 as a decimal.

 Write 2 log3 x + log3 5 as a single logarithmic expression.

 Factor the algebraic expression 6x2 - 21xy + 8xz - 28yz.

 Factor the algebraic expression (x - 1)2 - (y - 2)2.

 Factor the algebraic expression x2 - z4.

 Evaluate the algebraic expression |-2x - y + 3| for x = 3 and y = 5

 Simplify the algebraic expression -2(x - 3) + 4(-2x + 8)

 Expand and simplify the algebraic expression (x + 3)(x - 3) - (-x - 9)

 Which property is used to write a(x + y) = ax + ay

 Simplify 8 x3 / 2 x-3

 Simplify (-a2b3)2(c2)0

 For what value of k is the point (-2, k) on the line with equation -3x + 3y = 4?

 For what value of a will the system given below have no solutions?

2x + 6y = -2

-3x + ay = 4

 Which equation best describes the relationship between x and y in this table?

x | y |

0 | -4 |

4 | -20 |

-4 | 12 |

8 | -36 |

A. y = - x/4 - 4

B. y = - x/4 + 4

C. y = - 4x - 4

D. y = - 4x + 4

 Which equation best represents the area of the rectangle below?

.

A. area = 2(x+1) + 2(x-1)

B. area = 4(x+1)(x-1)

C. area = 2x2

D. area = x2 - 1

 Which line given by its equation below contains the points (1, -1) and (3, 5)?

A. -2y -6x = 0

B. 2y = 6x - 8

C. y = 3x + 4

D. y = -3x + 4

 Solve the equation 2|3x - 2| - 3 = 7.

 Solve for x the equation (1/2)x2 + mx - 2 = 0.

 For what values of k the equation -x2 + 2kx - 4 = 0 has one real solution?

 For what values of b the equation x2 - 4x + 4b = 0 has two real solutions?

 Function f is described by the equation f (x) = -x2 + 7. What is the set of values of f(x) corresponding to the set for the independent variable x given by {1, 5, 7, 12}?

 Find the length and width of a rectangle whose perimeter is equal to 160 cm and its length is...