Which of the binomials below is a factor of this trinomial? x²+x-30. a) x+6 b) x-6 c)x+3 d)x-3

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

5+2x=a

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