Which of the following shows the best way to set up the product of (7x-1) and (5-4x+6^3)?

A) 6x^3 + x^2 -4x + 5
7 x - 1

B) 6x^3 + 0x^2 - 4x + 5
7x - 1

C) 7x - 1
5 -4x + 6x^3

D) 7x - 1
6x^3 + x^2 - 4x + 5

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

1. what expression would be the same as 6x+x+0 2. find the prime factorization of 60 3. write the expression for 6 + x in words.

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.