Pls help I don’t understand I’ll give brainliest

Step-by-step explanation:

1) Simplify

2) Use this formula: a/b × c/d = ac/bd.

3) Simplify.

4)

5) Since 2 × 2 = 4, the square root of 4 is 2.

6) Simplify 32 × 2 to 64.

7) Simplify 64/2 to 32.

Therefor, the answer is option three -32

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4