Why can't the product of two digit numbers ever be two digits

Which of the binomials below is a factor of this trinominal? x^2-13+30

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Consider the first four terms of the sequence below. what is the 8th term of this sequence?