Simplify.
(x^2+5x+13)(x^2+6x+7)

a) x^4+30x^2+84

b) x^4+11x^3+49x^2+107x+84

c) x^4+37x^2+84

d) x^4+6x^3+7x^2+11x+19

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.