dranio
20.01.2021 •
Mathematics
The equation of line v is y+3=1/2(x+3). Line w is parallel to line v and passes through (6,3). What is the equation of line w?
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Ответ:
x^2 - 9x - 18 is prime.
Step-by-step explanation:
x^2 - 9x - 18:
We might try to factor this: - we need 2 numbers whose product is -18 and whose sum is -9:
- 18 = 2 * -9
-18 = -2 * 9
-18 = -3 * 6
-18 = 3 * -6
-18 = -18 * 1
-18 = 18 * -1
None of these factors add up to -9 so the trinomial is prime.