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W^2-8w=9 complete the square and round to the nearest hundredth if necessary

1 Answer

6 votes

Answer:

w = 7, 1

Explanation:

A perfect square is shown by a²-2ab+b²

If you substitute the question into the formula you get:

w²-(2×4×w)+4²

Simplify and you get:

w²-8w+16=9

Factor:

(w-4)²=9

Square Root both sides:

w-4=±3

w=7, w=1

User FelixRabe
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