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ceceallen2003
11.01.2021 •
Mathematics
I need help pls due today
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Ответ:
-7a + - 11 or -7a - 11
Step-by-step explanation:
1. -0.5 x 14a = -7a
2. -0.5 x 22 = -11
Ответ:
The factors are x-2,
and x+4
Therefore the expression can be written as![3x^3+7x^2-18x+8=(x-2)(x-\frac{2}{3})(x+4)](/tpl/images/0443/9099/62b97.png)
Step-by-step explanation:
Given expression is![3x^3+7x^2-18x+8](/tpl/images/0443/9099/7d091.png)
And also given that x-1 is one of the factors
i.e.,x-1=0
x=1
To find the factors equate the given expression to zero
Using synthetic division to find the factors
1_| 3 7 -18 8
0 3 10 -8
___________________
3 10 -8 0
Therefore the quadratic equation is![3x^2+10x-8=0](/tpl/images/0443/9099/c3f62.png)
To find the factors of the above equation:
Where a and b are coefficients of
and x respectively
Therefore
and ![x=\frac{-10-14}{6}](/tpl/images/0443/9099/01aa3.png)
Therefore
and ![x=-4](/tpl/images/0443/9099/14c42.png)
Therefore the factors are x-2,
and x+4