If triangle ABC is congruent to triangle DEC angle b = x + 15 and angle e = 6x - 65

x = 16

Step-by-step explanation:

Since the triangles are congruent, then corresponding angles are congruent.

∠ B and ∠ E are corresponding angles and congruent, thus

6x - 65 = x + 15 ( subtract x from both sides )

5x - 65 = 15 ( add 65 to both sides )

5x = 80 ( divide both sides by 5 )

x = 16

f(x)=4

step-by-step explanation:

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb