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miss Akunina [59]
4 years ago
14

What polynomial identity should be used to prove that 21=25-4?. A. Difference of cubes B. Difference of Squares C. Square of Bin

omial D. Sum of Cubes
Mathematics
1 answer:
Hunter-Best [27]4 years ago
6 0
21 = 25 - 4
21 = 5² - 2²
21 = ( 5 - 2 ) · ( 5 + 2 )
21 = 3 · 7
21 = 21
Answer: B ) Difference of Squares
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6 0
2 years ago
4 times the sum of a number and 8 gives 25
KatRina [158]

Answer:

4×(x+8)=25.

use the 4 to multiply the numbers in the bracket.

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then collect like terms which is...

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4 years ago
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7 0
1 year ago
PLEASE HELP! I REALLY NEED IT! I WILL GIVE BRAINLIEST!<br> PLEASE SEE ATTACHMENT!
frez [133]

the value of m is 24°

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
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