help please (how do u you y=2sec(2x+pi/3)-1
July 4th, 2009hello just stuck on this graph, how do u draw the graph
y=2sec(2x+pi/3)-1 ? please help thank you.
Pre cal.
November 21st, 2008how do you find the sine
Quadratic Polynomial Expansion in Algebra
July 7th, 2008Polynomials come in two forms. They can be expanded such as ax2+bx+c or they can be factored: (dx-e)(fx+g) where a,b,c,d,e,f,g are coefficients or constants while x is the variable. This post shows how to go from factored form to expanded form in the following examples:
Example 1:
(x+2)(x+2) = x(x+2)+2(x+2)
= x2+2x+2x+4
= x2+4x+4
Example 2:
(x+3)(x+5) = x(x+5)+3(x+5)
= x2+5x+3x+15
= x2+8x+15
The next example uses foil which can be used on any quadratic polynomial. Foil stands for first, outside, inside and last which is the order that terms are multiplied.
Example 3:
(x+2)(x+8)
First: x2
Outside: 8x
Inside: 2x
Last: 16
| First + Outside + Inside + Last | = x2+8x+2x+16 |
| = x2+10x+16 |
All of the examples use the Law of Distribution.
Hello world!
July 4th, 2008Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!