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Liono4ka [1.6K]
3 years ago
12

From the sum of 3x^2-5x+1 and x^3 +3x - 1 subtract 2x^3 - 4x2

Mathematics
1 answer:
Mariana [72]3 years ago
5 0

Answer:

it is -x^3 + 7x^2 -2x if you meant subtract 2x^3 - 4x^2 But if you meant subtract. 2x^3 - 4x +2 then the answer is -x^3 +3x^2 +2x -2

Step-by-step explanation:

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First,

We are dealing with parabola since the equation has a form of,

y=ax^2+bx+c

Here the vertex of an up - down facing parabola has a form of,

x_v=-\dfrac{b}{2a}

The parameters we have are,

a=-5,b=-10, c=6

Plug them in vertex formula,

x_v=-\dfrac{-10}{2(-5)}=-1

Plug in the x_v into the equation,

y_v=-5(-1)^2-10(-1)+6=11

We now got a point parabola vertex with coordinates,

(x_v, y_v)\Longrightarrow(-1,11)

From here we emerge two rules:

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So our vertex is minimum value since,

a=-5\Longleftrightarrow a

Hope this helps.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Step 1: Flip the equation.

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