One can is $0.40
six cans bought seperatly is (6 * $0.40) $2.40
$2.40 - $1.98 = $0.42 this is how much we could save between buying the six cans seperatly or together
to find out how much we save per can, divide $0.42 by six
$0.42 / 6 = $0.07
by buying six cans together you save $0.07 per can compared to buying six cans seperatly.
Answer:
the root is -2 , 0
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
a^2 =6^2=36
Multiply the values of a and c together;
9*30= 270 <— find prime factors of this
270= 3*3*3*5*2
Now find a way to add these factors in different ways to give 33 (b value)
We can try (3*3*2)+(3*5)=?
18+15=33
Now that you know the numbers, break down the b value.
9x^2+18x+15x+30
9x(x+2)+15(x+2) <— make sure the brackets are the same
(9x+15)(x+2) <— check if this expands to the initial answer
Hope I helped :)
Answer:
Step-by-step explanation:
Foil the equation!
1. You see that is to the second power so it means this 
2. Then you use the Foil method. First, Outside, Inside, and Last.
3. Combined like terms
4. Answer!
A tip you can use to avoid Foil is this mental math trick: (Keep in mind this only works if the polynomial is being squared.)
1. Multiply the first number by itself = 
2. Add the first number by itself = 
3. Multiply the last number by itself = 
4. Combined to form your answer =
NOTE: This is the same thing as a foil but it uses mental math so it takes less time!
