Need asap an equilateral triangle is shownwhat is the perimiter

C   9x^2 +15x +36

Step-by-step explanation:

Equilateral triangles have the same angles and the same length sides.

All the sides of the triangle have the length 3x^2+5x+12

The perimeter will be 3s  since the sides are the same

P=3s

P =3(3x^2+5x+12)

Distribute

P = 9x^2 +15x +36

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

if you was gonna solve for a, a is a   < -12