Answer:
3 is the root of the equation.
Step-by-step explanation:
We have to find the root of the polynomial equation x(x-2)(x+3)=18.
We can find the same by using a graphing utility and the system of equations.
We can make two equations which are given by

Now, we plot the graph of these equations and the x-coordinate of the intersection point will be the root of the equation.
the graph has been shown in the attached file.
The intersection point is (3, 18) and the x-coordinate is 3.
Therefore, 3 is the root of the equation.
Answer:
x
Step-by-step explanation:
Add 7 to other side making equation 16x
-71+7
16x
-64
16 goes into -64 -4 times.
Answer would give you x
-4
To check, you could substitute -4 into the inequality
16(-4)-7
-71
-71
-71 check
16(-10)-7
-71
-167
-71 check
Boys : Girls : Total
5 : 7 : 5 + 7
5 . ; 7 . : 12
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Find 1 part :
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12 parts = 36
1 part = 36 ÷ 12
1 part = 3
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Find number of boys (5 parts)
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1 part = 3
5 parts = 3 x 5
5 parts = 15
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Answer: There are 15 boys.
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1. No, because every prime factor can not be prime factorized again. It could have more factorizations, but at least one of the factors would be a composite number which is the product of at least two of the prime factors.
2. Prime numbers and 1 do not have their prime factorization.
Another way to name 1/4 would be .25