Liam is setting up folding chairs for a meeting. if he arranges the chairs in 6 rows of the same length, he has 7 chairs left over. if he arranges the chairs in 4 rows of that same length, he has 19 left over. how many chairs does liam have?

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.