Answer:
Step-by-step explanation:
see below, if you have any questions leave a comment
Long way:
2(x-3)(x+3) = 2(x*x + 3*x - 3*x - 3*3)
2(x-3)(x+3) = 2(x^2 - 9)
2(x-3)(x+3) = 2x^2 - 2*9
2(x-3)(x+3) = 2x^2 - 18
Shortcut way:
Using formula (x+a)(x-a) = x^2 - a^2, where a = 3, in the case of (x+3)(x-3), so we have
(x+3)(x-3) = x^2 - 9.
Then, we multiply that by 2, which gives 2x^2 - 18.
All the factors of 32 include: 1,2,4,8,16,32
Hope this helps! (:
Answer: $39.06
Step-by-step explanation: First you have to remove 7% of 40 and subtract it because he had a discount the number you will have is 2.8 and subtract that number from 40 and you will get 37.2. After that what you No from reading the question that 5% was added as a tax So when you know what 5% of 37.2 is You will also know that the answer currently is 1.86 so you get the 1.86 and you add it to 37.2 and you will get 39.06.
Answer:
1. no
2. no
3. no
4. yes
Step-by-step explanation: