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3 years ago

How can I factor this Trinomial? Please show me how! 3x² - 8x + 4

Mathematics

2 answers:

Inga [223]3 years ago

7 0

Step-by-step explanation:

3x² - 8x + 4 =

3x² - 6x -2x + 4 =

3x(x-2) -2(x-2) =

(3x -2)(x-2)

Shkiper50 [21]3 years ago

5 0

$\\ \sf\longmapsto 3x^2-8x+4$

$\\ \sf\longmapsto 3x^2-6x-2x+4$

$\\ \sf\longmapsto 3x(x-2)-2(x-2)$

$\\ \sf\longmapsto (x-2)(3x-2)$

$\\ \sf\longmapsto Done!$

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3 years ago

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3 years ago

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Dimas [21]

Answer:

Step-by-step explanation:

The directrix is a vertical line, so the parabola is horizontal. The focus lies to the left of the directrix, so the parabola opens to the left.

For a left-opening parabola:

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Apply your data

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3 years ago

Read 2 more answers

Let f (x) = -1/2(x + 2)+ 5

bogdanovich [222]

Answer:

Rate of change = -1

Step-by-step explanation:

Given:

f(x) = -½(x + 2)² + 5

Required:

Average rate of change from x = -3 to x = 1

Solution:

Rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

a = -3,

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b = 1,

f(b) = f(1) = -½(1 + 2)² + 5 = -½(9) + 5 = 0.5

Plug in the values into the formula:

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