Answer:
A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.
If you meant:
(2ya)^4=16y^8 raise the left side to the power of four
16y^4*a^4=16y^8 divide both sides by 16y^4
a^4=y^4 take the quartic root of both sides
a=±y
You can download the app photo math and that will help you
<em>Answer,</em>
<h2>(7x + 2)(x +2)</h2><h2 />
<u><em>Hope this helps :-)</em></u>