Question

Solve the equation to find a positive value of c: 62 + 82 = c2

Answer 1

$c^{2}$ = 144
c = ±$\sqrt{144}$
c = ±12

Answer 2

Simplify. Combine like terms

62 + 82 = 144

c² = 144

Isolate the c. Note the equal sign. What you do to one side, you do to the other.

Root both sides

c² = 144

√c² = √144

c = √144

c = 12

12 is your answer for c

hope this helps