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True [87]
3 years ago
15

Choose the correct simplification of (4x3 + 3x2 − 6x) − (10x3 + 3x2).

Mathematics
2 answers:
Ray Of Light [21]3 years ago
7 0
Answer:
-6x (x + 1)(x - 1)

Explanation:
Before we begin, remember the following:
(-ve) * (-ve) = +ve
(-ve) * (+ve) = -ve
(+ve) * (+ve) = +ve
(+ve) * (-ve) = -ve
a² - b² = (a + b)(a - b)

Now, for the given:
(4x³ + 3x² - 6x) - (10x³ + 3x²)
First, we eill remove the brackets based on the rules mentioned above. This will give us:
4x³ + 3x² - 6x - 10x³ - 3x²
Now, we will combine like terms as follows:
(4-10)x³ + (3-3)x² - 6x
-6x³ - 6x
Taking -6x as a common factor:
-6x (x² - 1)
Factoring the bracket as difference between two squares will give us the final simplest form:
-6x (x + 1)(x - 1)

Hope this helps :)
Nadya [2.5K]3 years ago
5 0
4x^{3} +3 x^{2} -6x - (10 x^{3}+3 x^{2} )

First, distribute the negative into the parenthesis

4x^{3} +3 x^{2} -6x - 10 x^{3}-3 x^{2}

Next, combine like terms

-6x^{3} - 6x is your final answer
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Answer:

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Step-by-step explanation:

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Then you simplify and get the answers x= 3 +\sqrt{23}, 3 -\sqrt{23}

​​  

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\huge{\boxed{\text{D}}}

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