Answer:
It is 3⁸.
Step-by-step explanation:
xᵃ . xᵇ = x⁽ᵃ ⁺ ᵇ⁾
(xᵃ)ᵇ = xᵃᵇ
Using these two conditions we get:


Hence, the answer is 3⁸.
The equivalent equation is x² + 20x = -102
<h3>
Simplification of quadratic equation</h3>
The equivalent equation can be obtained by factorizing or simplifying the given quadratic equation as shown below;
x² + 20x + 81 = -21
<em>collect similar terms together</em>
x² + 20x + 81 + 21 = 0
x² + 20x + 102 = 0
The equation can also be written as x² + 20x = -102
Thus, the equivalent equation is x² + 20x = -102
Learn more about simplification of quadratic equation here: brainly.com/question/1214333
Elena should put a point where the two circles intersect and draw line segments connecting that point to points A and B to finish her triangle.
Step one: divide both sides by -2.3 to get X by itself: X=-.2. :)