Factor the polynomial x2 + x - 6. which one of the following is a factor? (x - 1) (x + 2) (x + 3) (x + 5)

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

Tan198=asin164=? how to solve this? ?