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lbabineaux9887
18.07.2019 •
Mathematics
Do 12, 13, and 14! show work so i can understand! you!
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Ответ:
(x-3)(x-3)=0
x-3=0
x=3
x² - 6x +9 = 0 also can be soled as perfect square,
x²-2*3x+3² = (x-3)³
(x-3)² = 0
x-3=0
13)
3= 2x² - 5x
2x² -5x -3 = 0
2x²+x - 6x-3 =0
x(2x+1) - 3(2x+1)=0
(2x +1)(x - 3) = 0
2x+1 = 0, or x-3=0
x= -1/2, x=3
14)
3 - 12 = -9x²
- 9 = -9x²
1=x²
x² -1 = 0
(x-1)(x+1)=0
x-1=0 , x+1=0
x=1, x= - 1
Ответ:
Monomial
Step-by-step explanation:
A binomial has 2 terms(e.g. 2x + 3)
A trinomial has 3 terms(e.g.
)