You must factor.

The factored form is equal to the assigned form.

Values a, b correspond to the factored 1, -1.
Value of x however remains unknown. But we can change that.
Given factored result,

We can set expression equal to 0 then find such x that when added with number a or b results with 0.

Hence x has 2 solutions.

Hope this helps.
Look at the ratio (2:3). You can see that the numbers of "ratio units" add up to 5, and that the total number of books is 100 times that value. Then each "ratio unit" stands for 100 books.
3 ratio units of chapter books mean there are 300 chapter books.
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Answer:
Step-by-step explanation:
0.5(-5) - 2(2)
= -0.25 - 4
= -4.25
I’m pretty sure it’s 2x^2 - 12x
Since there are six numbers, on average 1,2,or 3 will come up 50 percent of the time and 4,5, and 6 will also come up 50 percent