Name this property.
A + (B + C) = (A + B) + C
Associative Property
What do you do when dividing powers with the same base?
Subtract the exponents
When multiplying binomials, we use the FOIL method. What does FOIL stand for?
First, outer, inner, last
Simplify the expression: (x2 - 1)/(x2 + x - 2)
(x + 1)/(x + 2)
What is the definition of a solution, or root?
The value of the unknown that makes the equation true
What is the definition of an irrational number?
A number that cannot be expressed as a ratio of integers
The diameter of a carbon atom is 0.000000000154m. What is this number in scientific notation?
1.54 X 10-10
Name 3 different types of polynomials.
Monomial, binomial, trinomial
What is a compound fraction?
When the numerator, denominator, or both, are themselves fractional expressions
What is the quadratic formula?
What is the sum of 2/5 + 3/7?
29/35
Simplify the expression (2a3b2)(3ab4)3
54a6b14
Find the difference of the polynomials.
(x3 - 6x2 + 2x +4) - (x3 + 5x2 - 7x)
-11x2 + 9x + 4
If a fraction has a denominator of the form A + B√C, we can rationalize the fraction by multiplying the numerator and denominator by what?
Conjugate reciprocal
To make x2 + bx a perfect square, we add:
The square of half the coefficient of x
A = {x|x is an integer and 0<x<7}
What type of notation is this?
Set-builder notation
When you have a fraction raised to a negative power, how do you rewrite the expression without a negative exponent?
Invert the fraction and change the sign of the exponent
Factor 6x2 + 7x - 5
(3x + 5)(2x - 1)
We can use the special product formula to rewrite (A+B√C)(A-B√C) as:
A2 - B2C
What is the discriminant of the quadratic formula, and what does it tell you?
D = b2 - 4ac
It tells you the nature of the solutions of the quadratic equation. In other words, how many solutions it has.
Simplify 241/4 x 541/4
(Hint: the answer is an integer)
6
Using a special product formula, we can rewrite (A-B)3 as:
A3 - 3A2B + 3AB2 - B3
Simplify (x3y2)1/2(xy3)1/4
x7/4y7/4
A bullet is shot straight up into the air. Using the formula h = -16t2 + 800t, determine at what time(s) the bullet reaches a height of 6,400 ft.
After 10 and 40 seconds