Which expression is prime? A) x2 - 6x + 9 B) x2 + 16x + 64 C) 4x2 + 20x + 25 D) 9x2 - 30x - 25
2 answers:
D is a prime polynomial.
The best way to figure this out is by attempting to factor them all. Each of them factors into perfect squares except for D.
A)
x^2 - 6x + 9 = (x - 3)^2
B)
x^2 + 16x + 64 = (x + 8)^2
C)
4x^2 + 20x + 25 = (2x + 5)^2
D we can also tell won't have a perfect square like that because it ends in a negative number. No number multiplied by itself is negative.
Answer:
The answer is 
.
Step-by-step explanation:
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Answer:
C
Step-by-step explanation:
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Answer:
D is the answer
Step-by-step explanation:
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The exact form is: 3/32
And the decimal form is: 0.09375
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