Answer:
a=√c3+4 or a=−√c3+4
c=√a2−4 or c=−√a2−4
Explanation:
Let's solve for c.
−a2+c2=−4
Step 1: Add a^2 to both sides.
−a2+c2+a2=−4+a2
c2=a2−4
Step 2: Take square root.
c=√a2−4 or c=−√a2−4
Let's solve for a.
−a2+c2=−4
Step 1: Add -c^2 to both sides.
−a2+c2+−c2=−4+−c2
−a2=−c2−4
Step 2: Divide both sides by -1.
−a2
−1
=
−c2−4
−1
a2=c2+4
Step 3: Take square root.
a=√c2+4 or a=−√c2+4
