factoring trinomials and perfect square trinomials
What is the slip and slide method
2x2 -8x+6= 0
x=3 x=1
A music app charges $2 to download the app plus $1.29 per song downloaded. Find the total cost to download 30 songs
y=40.7
s= 2d/t
st /2=d
when solving for quadratic equations, you use the _____ formula
quadratic formula
factor 2x2 +5x+3
8x2 +16x-24=0
x=1 x= -3
the late fee for library books is 2.00 plus 15cents each day for a book that is late. If maria’s fee for a late book was $3.20, find how many days late the book was
y= 8
e= mc2
int_0^pi sqrt e/m = int_0^pi sqrt c^2
6x2-15x=0
x=0
x= -5/2
6x2 +12x= 90
x=3 x= -5
. an airplane at 30,100 feet above the ground begins descending at a rate of 2,150 feet per minute. Find how many minutes it will take the plane to reach the ground
14 minutes
v= 1/3πr2 h
3v/πr^2=h
x2+4x+17= 8-2
x= -3 x= -3
factor x2 + 4x-5=0
x=1 x= -5
4x2 +24x+16=5
x= -1/2
x= - 11/2
. a road side vegetable stand sells pumpkins for $5 each and tomatoes for $3 each. The total sales on a certain day was $98. If they sold 10 pumpkins, fine the number of tomatoes sold
y= 16
a= 2(b-c)
a/2 + c=b
2x2-8x-2=3
x= 4.55 x= .55
x2 +71=18x-9
x= -8 x= -10
8x2 +36x+30= 10-x2
x= -2/3 x= -10/3
you are buying the hamburgers and chicken for a party. The hamburgers cost $2.75 per pound and the chicken is $3.50 per pound. If you have $75 to spend, find how many pounds of chicken you can afford to buy 12 pounds of hamburgers
y= 12
a= 1/2 h (b1+b2)
-b1 = b2
-x2+7x-18=0
no solution