StupidBoy
20.04.2020 •
Mathematics
Factor the polynomial below.
χ2 – 5x - 14
(x-5)(x - 14)
- 14)(x + 1)
(x + 70x - 2)
(x+2)(x - 7).
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Ответ:
(x + 2)(x - 7)
Step-by-step explanation:
Given
x² - 5x - 14
Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)
The factors are + 2 and - 7, since
2 × - 7 = - 14 and 2 - 7 = - 5, thus
x² - 5x - 14 = (x + 2)(x - 7)
Ответ:
Lunar Eclipse
Step-by-step explanation:
Lunar eclipse is the phenomenon that occurs on the night of the full moon. During this phenomenon the Earth comes in between the Sun and the Moon. The Earth blocks the light of the Sun with which the Moon is visible to the people on the Earth. Lunar Eclipse is visible from the part of the Earth that is experiencing the night. The duration of the Lunar eclipse can be for two hours. The moon appears to be red because of the reflection of the Earth.