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Free_Kalibri [48]
3 years ago
10

Simplify (3x + 5) + (2x - 9) - (4x + 3).

Mathematics
2 answers:
Korolek [52]3 years ago
5 0
<span>(3x + 5) + (2x - 9) - (4x + 3)
</span><span>3x + 5 + 2x - 9 - 4x - 3
5x - 4x + 5 - 12
x - 7</span>
Assoli18 [71]3 years ago
3 0
=x - 7 Should be correct
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Explanation:

1)

The closure property of integer states that the addition, subtraction and multiplication is integers is always an integer.

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2)

A polynomial is in the form of,

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When we subtract the two polynomial then the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

3)

If a polynomial divided by a polynomial  then it may or may not be a polynomial.

If the degree of numerator polynomial is higher than the degree of denominator polynomial then it may be a polynomial.

For example:

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f(x)=x^2-2x+5x-10 \text{ and } g(x)=x-2

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As we know a polynomial is in the form of,

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Where a_n,a_{n-1},...,a_1,a_0 are constant coefficient.

When we multiply the two polynomial, the degree of the resultand function is addition of degree of both polyminals and the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

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