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MAVERICK [17]
2 years ago
8

(x+4)(x-2) as a triomial in standard form

Mathematics
2 answers:
ZanzabumX [31]2 years ago
7 0

x^2 + 2x - 8

just multiply (x+4)(x-2)

x times x = x^2

x times -2 = -2x

4 times x = 4x

4 times -2 = -8

-2x + 4x = 2x

Nataliya [291]2 years ago
6 0

Answer:

x² - 8x + 16 Hope this helps

Step-by-step explanation:

Step 1: Write out expression

(x - 4)²

Step 2: Expand

(x - 4)(x - 4)

Step 3: FOIL

x² - 4x - 4x + 16

Step 4: Combine like terms

x² - 8x + 16

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Graph the equation y= 1/2x +3
PolarNik [594]
Find some graphing paper and graph away..
i.e. Sub in x = 0 and find what y = ?
y = 1/2(0) + 3
y = 3
So we know the coordinate (0,3)

When x = 4 , y = ?
y = 1/2(4) + 3
y = 4/2 + 3
y = 2 + 3
y = 5
So we know another coordinate (4, 5)

When x = -4, y = ?
y = 1/2(-4) + 3
y = -4/2 + 3
y = -2 + 3
y = 1
So we know another coordinate (-4, 1)

Putting it all together, the coordinates: (-4, 1) , (0, 3) and (4, 5) should be plenty sufficient to graph and then draw a line of best fit connecting them.
4 0
3 years ago
PLEASE HELP EASY 6TH GRADE MATH! WHOEVER DOES THE BEST GETS BRAINLIEST PLZZZZZZ?
zhuklara [117]

Answer:

1.B 2.B 3.A

Step-by-step explanation:

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8 0
3 years ago
Given the system of equations, what is the x-coordinate of the solution?
Nimfa-mama [501]
Answer: Choice C) -11

-----------------------------------

Explanation:

The first equation given is y = 3 - 1/2x
In other words, y is the same as 3 - 1/2x. 
We can replace y in the second equation with 3 - 1/2x
This is known as substitution (think of a substitute teacher who is a temporary replacement for your teacher)

Doing this leads to...
3x+4y = 1
3x+4*y = 1
3x+4*( y ) = 1
3x+4*( 3 - 1/2x ) = 1 <<--- y has been replaced with 3-1/2x
3x+4*(3) +4*(-1/2x) = 1
3x+12-2x = 1
3x-2x+12 = 1
x+12 = 1
x+12-12 = 1-12 <<-- subtracting 12 from both sides
x = -11
Which is why the answer is choice C) -11
6 0
2 years ago
Read 2 more answers
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xxMikexx [17]

Answer: 40 bales of hay

Step-by-step explanation:

5 0
2 years ago
Estimate the difference.<br><br> 6.11 - 1.2<br><br> 6<br> 7<br> 5<br> 4
fenix001 [56]

Answer:

5

Step-by-step explanation:

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