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lesantik [10]
3 years ago
14

Need answer with step by step form

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0
H(x)=-3x-5
H(x)=-2
So that means you just have to plug in -2 fir x
-2=-3(-2)-5
-2=(6)-5
-2=-30
Which means if you plug in -2 into the equation you will get -30.
Hope it helps!!
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The zeros of the cubic function f(x) = 2x³ - 6x² - 16x - 20 are given as follows:

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<h3>How to obtain the solutions to the equation?</h3>

The equation is defined by the rule presented as follows:

f(x) = 2x³ - 6x² - 16x - 20.

One solution for the equation is given as follows:

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Because f(5) = 0.

Then (x - 5) is a linear factor of the function f(x), which can be written as follows:

2x³ - 6x² - 16x - 20 = (ax² + bx + c)(x - 5).

This is because the product of a linear function and a quadratic function results in a cubic function.

Now we expand the right side to begin finding the coefficients of the quadratic function that we are going to solve to find the remaining zeros:

2x³ - 6x² - 16x - 20 =  = ax³ + (b - 5a)x² + (c - 5b)x - 5c.

Then these coefficients are obtained comparing the left and the right side of the equality as follows:

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Hence the equation is:

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Using a quadratic equation calculator, the remaining zeros are given as follows:

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More can be learned about the solutions of an equation at brainly.com/question/25896797

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