Determine the factors of x2 − 7x − 10.
A. (x + 2)(x − 5)
B. Prime
C. (x − 2)(x + 5)
D. (x + 10)(x − 1)

Question

Determine the factors of x2 − 7x − 10.
A. (x + 2)(x − 5)
B. Prime
C. (x − 2)(x + 5)
D. (x + 10)(x − 1)

anonymous · Answer

Determine the factors of x2 − 9x + 20. 
A. (x + 4)(x + 5)
B. (x − 4)(x − 5)
C. (x + 2)(x + 10)
D. (x − 2)(x − 10)

anonymous · Answer

remember the formula 
$$x^{2}+ (a+b)x+(a*b) $$

anonymous · Answer

so what you're looking for is two numbers that add to -7 and mulitply to -10 
and/or the second problem add to -9 multiply to 20

anonymous · Answer

I personally can't think of a solution to the first posted problem I would go with "Prime"

precal · Answer

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