Prove: The square of a number that is
two more than a multiple of 3 is one more
than a multiple of 3.
(3n + 2)2 = 9n2 + 12n +4
= [ ? ]n2 + ]n+ ] +1
= [ [ ]n2 + [ ]n + 1) + 1
= 1 more than a multiple of 3

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?