Factor the following binomial: 3x^2+13x+12

a.3x + 1)(x + 12)
b.(2x + 5)(x + 2)
c.(4x + 3)(x + 4)
d.(3x + 4)(x + 3)

What is the 12th term of b(n)=-4-2(n-1)

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet