priscillavaladez1112
25.02.2020 •
Mathematics
Multiply the following polynomials
Solved
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Ответ:
4x^2 - 17x - 15
Step-by-step explanation:
Do 4x * x = 4x^2
4x * - 5 = - 20x
3 * x = 3x
3 * - 5 = - 15
You get 4x^2 - 20x + 3x - 15
Simoly and you get the answer
Ответ:
exists as it is today
casts off matter as planetary nebula.
begins nuclear fusion at its core
enters red giant phase
becomes a white dwarf
becomes a black dwarf
Tiles
Explanation:
The solar system is formed over 4 billion years ago. It is formed from big cloud and gases called nebular.
The nebular collapsed and be one denser. The core of nebular becomes hot and undergo nuclear fusion reaction. nuclear reactions tends to expand it outwards. The gravitational collapse is balanced by the expansion due to fusion energy.
It will then expand and cool to become red giant. It will then shrink and heat up again to become white dwarf. These will slowly cool down for years.