Joe surveyed 42 boys and girls to see how many of them like hamburgers and how many do not like hamburgers. he noted the results of his survey in the table below.

the majority of the people who blank like hamburgers are girls.
do
do not

the majority of the people who blank like hamburgers are boys.
do
do not

the majority of boys blank like hamburgers.
do
do not

The majority people who do like hamburgers are girls.

The majority of the people who do not like hamburgers are boys.

The majority of boys do not like hamburgers.

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