log1,000,000
6
natural log base is 10
10^6=1,000,000
simplify (a+b) (a+b)
a2+ab+ba+b2
multiply with FOIL, (first outer inner last)
(a)(a)=a2 (b)(b)=b2 (a)(b)=ab (b)(a)=ba
x+(2/x)=3
2
get rid of the denominator x(x+(2/x))=x(3)
move it to one side x2-3x+2=0
(x-2) (x-1)
check for extranious, 2 works, 1 does not.
(23)4
212
multiply 3(4)=12
predict the number of roots
a(x)=x2+3x-10
2
An nth degree polynomial has n roots
(x2+8x+12)/(x2+3x-18)
(x+2)/(x-3)
simplify (x+6)(x+2)/(x+6)(x-3)
eliminate the identical ones (x+2)/(x+3)
29=512
9=log2(512)
the mmber becomes the base and the exponent becomes the number
find the zeros
f(x)=x2+20x=51
(-17,0) (-3,0)
(x+17)(x+3)
17+3=20
17(3)=51
Identify actual solutions, -1 and 5/2
a-(3/(2a+1))=2
both work
plug in the answers as "a"
(-1)-(3/(2(-1)+1))=2 it works
(5/2)-(3/(2(5/2)+1))=2 it works
10x=3162
x=3.5
x=log10(3162)
simplify
3x/6x2
x/2x2
factor (3)(x)/(3)(2x2)
eliminate the common factor x/2x2
what is the verticle asymptote of
y=(x+4)/(-2x-6)
-4
set the denominator equal to zero and solve
(x+4)/0=y
x+4=0
x=-4
what is the compound interest formula
A=P(1+(r/n))nt
simplify
(3x(2x+7)(x-1)(6x-5))/(x(2x+7)(x-1)(6x-5))
3
remove common factors 3x/x
3x/x = 3/1 = 3
how do you find the horizontal asymptote