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Ymorist [56]
3 years ago
8

Which polynomial is a difference of squares?

Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

<u>Answer</u>

D.25x2 – 36


<u>Explanation</u>

A. x² – 16x + 64

product = 64

sum = -16

factors: -8 and -8

x² – 16x + 64  = x² - 8x - 8x + 64

                       = x(x - 8) - 8(x - 8)

                        = (x - 8)(x-8) = (x-8)²      ⇒ Not a difference of squares


B.x² + 4 = (x² + 2²) ⇒ Not a difference of squares


C.9x² – x – 36

product = - 324

sum = -1

Factors: none

9x² – x – 36  ⇒ Has no perfect roots.


D.25x² – 36

25x² – 36 = (5x)² - 6²   ⇒ This is the difference of squares.

Greeley [361]3 years ago
5 0
Hello,

Answer D

25x²-36=(5x)²-6²
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2 years ago
Jim borrows $790 for 4 months. He pays a simple interest of 6%. How much interest must be pay? Around your answer to the nearest
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6 0
3 years ago
Need your help ASAP please help
eduard

His average is 86 so it is below 90.  to get his average i just added all of his grades up to get 517 and then I divided 517 by 6 because thats how many grades he has and I got 86.

On the Grade row in the table it would go 83, 94, 79, 90, 96, 75 in order

The Above/Below 90 row would go -7, 4, 11, 7, -6, -3 in order

Lamont needs to get a 99 on his next test to have an average of exactly 90.


I HOPE THIS HELPED! PLEASE RATE ME AND MAKE MY ANSWER MOST BRAINLIEST!!

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Answer:

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2 years ago
Read 2 more answers
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