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lokiando
 one year ago
Which polynomial is prime?
a) 7x^2 – 35x + 2x – 10
b) 9x^3 + 11x^2 + 3x – 33
c) 10x^3 – 15x^2 + 8x – 12
d) 12x^4 + 42x^2 + 4x^2 + 14
lokiando
 one year ago
Which polynomial is prime? a) 7x^2 – 35x + 2x – 10 b) 9x^3 + 11x^2 + 3x – 33 c) 10x^3 – 15x^2 + 8x – 12 d) 12x^4 + 42x^2 + 4x^2 + 14

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Try factoring by grouping.

lokiando
 one year ago
Best ResponseYou've already chosen the best response.0just give me the answer

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Here is a) as an example. Group the first two terms, and group the last two terms. Then try to factor a common factor out of the first group and a common factor out of the second group. 7x^2 – 35x + 2x – 10 = (7x^2  35x) + (2x  10) = 7x(x  5) + 2(x  5) = (x  5)(7x + 2)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Now try the same with the others.
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