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4 years ago

Which of the following polynomial represents a difference of squares?

Mathematics

1 answer:

Misha Larkins [42]4 years ago

5 0

Heres an example x2- 16 when u solve or factor u should get the difference of two squares of (x+2) (x-2)

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Please answer asap this person made a mistake what is the error and correct solution to this problem

stiv31 [10]

Answer:

Step-by-step explanation:

Hello, please consider the following.

$(4+x)^2=4^2+2\cdot 4\cdot x+x^2=16+\boxed{8}x+x^2\\\\\text{ ... and not ...}\\\\16+\boxed{4}x+x^2$

So the correct equation becomes.

$x^2+64=16+8x+x^2\\\\8x=64-16=48\\\\\text{ we divide by 8 both sides of the equation.}\\\\x=\dfrac{45}{8}=6$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0

3 years ago

Read 2 more answers

The area of a rectangular wall of a barn is 153 square feet. Its length is 8 feet longer than the width. Find the length and wid

r-ruslan [8.4K]

Answer and Step-by-step explanation:

Area (A) = 153

Length (l) = 8 + w

Width (w) = w

A = lw

153 = (8 + w)(w)

153 = $w^{2} + 8w$

0 = $w^{2} + 8w$ - 153

$w^{2} -9w + 17w - 153$

(w - 9)(w + 17)

w = 9

w = -17

We can't have a negative length, so we only use 9.

w equals 9.

That means l equals 17 (9 + 8 = 17).

Length = 17

Width = 9

#teamtrees #WAP (Water And Plant)

5 0

3 years ago

The midpoint AB is M (-1,1). If the coordinates of A are (-6,-3), what are the coordinates of B

Ratling [72]

Answer:

coordinates of B is ( 4,5)

Step-by-step explanation:

If there two points (x1,y1) and (x2,y2) on a plane then coordinates of mid point is given by

m = (x1+x2)/2 , (y1+y2)/2

Given

m = (-1,1)

A= (-6, -3)

we have to point b

let point b be (x,y)

Then m (-1,1) is given by (-6+x)/2 , (-3+y)/2

(-6+x)/2 = -1

-6 + x = 2*-1 = -2

x = -2+6 = 4

also

(-3+y)/2 = 1

=> -3 + y = 2

=> y = 2 + 3 = 5

Thus , coordinates of B is ( 4,5) answer

5 0

3 years ago

Isosceles trapezoid ABCD has legs AB and CD and base BC. If AB=6y-6, BC=4y-7, and CD=7y-12, find the value of y.

Otrada [13]

I'm pretty sure y=6, but I would take caution.

5 0

3 years ago

DONT mind the other questions just answer number 3

fomenos

Yes because idk why cux u know yea

5 0

3 years ago

Read 2 more answers