First Part:
For every parenthesis with a plus sign to its left, you can eliminate the parenthesis (take into account that plus×minus=minus)
a + a - b - a + b
Then you add like terms. This means you add/subtract a with a and same with b and b (I'll organize the terms in alphabetical order but it's not neccesary)
a + a - a - b + b
Since a - a =0 and b - b = 0,
a + 0 + 0
Answer: a
Second part
Since you have a minus to the left of a parenthesis, you have to change the signs of all the terms inside the parenthesis before you eliminate the parenthesis.
![= {a}^{2} - {b}^{2} + 2 {a}^{2} - {a}^{2} + {b}^{2} \\ = {a}^{2} + 2 {a}^{2} - {a}^{2} - {b}^{2} + {b}^{2} \\ 2 {a}^{2} + 0 + 0](https://tex.z-dn.net/?f=%20%3D%20%7Ba%7D%5E%7B2%7D%20%20%20-%20%20%7Bb%7D%5E%7B2%7D%20%20%2B%202%20%7Ba%7D%5E%7B2%7D%20%20-%20%20%7Ba%7D%5E%7B2%7D%20%20%2B%20%20%20%7Bb%7D%5E%7B2%7D%20%20%5C%5C%20%20%20%3D%20%7Ba%7D%5E%7B2%7D%20%20%2B%202%20%7Ba%7D%5E%7B2%7D%20%20-%20%20%7Ba%7D%5E%7B2%7D%20%20-%20%20%7Bb%7D%5E%7B2%7D%20%20%2B%20%20%7Bb%7D%5E%7B2%7D%20%20%5C%5C%202%20%7Ba%7D%5E%7B2%7D%20%20%2B%200%20%2B%200)
Answer: 2a^2
Answer:
-2√3+2√15
Step-by-step explanation:
To solve this question simply break down the variables and numbers one at a time.
Here the word a number can be used to describe any number so let’s call that a variable x.
Increased would be addition in mathematics.
Next put everything together.
5x + 6 = -2
5x = -8
X = -8/5.
This is the value of x
Answer: the 24 oz hazelnuts
Step-by-step explanation:
Answer:
nope it would be B (1)
Step-by-step explanation: