Are you looking for the name of the method? If so, it's called completing the square.
Seventy-2 people. Well break it down to 12 people on 6 teams.
Answer:
<u><em>Answer is below</em></u>
Step-by-step explanation:
<em><u> Factor left side of equation.</u></em>
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<em><u>Set factors equal to 0.</u></em>

It is shown as a sum of each digit multiplied by its matching place value<span> (units, tens, hundreds, etc.) For example: 4,265 = </span>4<span> x 1,000 + 2 x 100 + 6 x 10 + 5 x 1.</span>
photo math duhhhhhhhhhhhhhhhhhhhh