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myrzilka [38]
2 years ago
9

Find the factors and zeros of 6x^2 +8x-28=2x^2 + 4

Mathematics
1 answer:
Mice21 [21]2 years ago
4 0

Answer:

First solve the equation:

6x^2 + 8x -28 = 2x^2 + 4

=> 6x^2 - 2x^2 + 8x - 28 -4 = 0 => 4x^2 + 8x - 32 = 0

Extract common factor 4:

=> 4[x^2 + 2x - 8] = 0

Now factor the polynomial:

4(x + 4) (x - 2) = 0

=> the solutions are x + 4 = 0 => x = -4, and x - 2 = 0 => x = 2.

So the answer is the option B: 4(x + 4)(x - 2); {-4, 2}

HOPE THIS HELPS! :D

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iVinArrow [24]

Answer:

(-4,-1) is the answer unless your asking for an actual equation

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2 years ago
I need help on this one I have the image attached
mart [117]

Answer:

x = 40

Step-by-step explanation:

The ADF is 90 degrees so the CAF will also be 90

So you do

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3 years ago
Use the slope-intercept form to Graph y=-1/8x+2
noname [10]

Step-by-step explanation:

This is a straight line equation. We only need two points to draw a straight line.

Choose two different numbers, put them into the equation instead of x, and calculate the value of y.

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for x = 8

y=-\dfrac{1}{8}\cdot8+2=-\dfrac{8}{8}+2=-1+2=1

<h2>(8, 1)</h2>

for x = -8

y==-\dfrac{1}{8}\cdot(-8)+2=\dfrac{8}{8}+2=1+2=3

<h2>(-8, 3)</h2>

Mark the points in the coordinate system and draw a straight line through the given points.

<em>(look at the attachment)</em>

4 0
3 years ago
Is subtraction of decimals associative? If not, give a counter example.
Masteriza [31]
Associative property is only applied to addition and multiplication. Thus, it can't be applied to subtraction. This property is manifested when you get the same answer no matter where you put the parenthesis. Example of associative property is:

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50 + (2+92) + 6 = 50 + 94 + 6 = 150

Here is the counter example for the subtraction of decimals:

(3.45 - 8.92) - (1.9 - 7.3) = -5.47 - ⁻5.4 = -0.07
3.45 - (8.92 - 1.9) - 7.3 = 3.45 - 7.02 - 1.9 = -5.47
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4 0
3 years ago
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Misha Larkins [42]

Answer:

Step-by-step explanation:

Seperate the shape into two. 16x2=32cm². 12x11=132cm²

So altogether it would = 164cm²

7 0
3 years ago
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