Which important information did you include in your description? Check all of the boxes that
apply.
Check for a greatest common factor.
There are four terins, so consider factoring by
grouping, which yields
(2x +5)(x2 – 4).
Identify x2 – 4 as the difference of squares.
Factor completely as
(2x + 5)(x + 2)(x - 2).

answer: 12   they all have at least 28 days

step-by-step explanation: haha

moderators are

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.