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Answer:
Step-by-step explanation:
Let's solve for c.
c2−9=b2
Step 1: Add 9 to both sides.
c2−9+9=b2+9
c2=b2+9
Step 2: Take square root.
c=√b2+9 or c=−√b2+9
Answer:
c=√b2+9 or c=−√b2+9