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Popular >

factor y^2-18y+81

Solution

factor

y^{2} - 18 y + 81

Solution

(y - 9)^{2}

Solution steps

y^{2} - 18 y + 81

Rewrite in the form of

a^{2} + 2 ab + b^{2} :

81 = 9^{2}

- 18 y = - 2 y \cdot 9

= y^{2} - 2 y \cdot 9 + 9^{2}

Apply Perfect Square Formula:

a^{2} - 2 ab + b^{2} = (a - b)^{2}

y^{2} - 2 y \cdot 9 + 9^{2} = (y - 9)^{2}

= (y - 9)^{2}

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simplify (n^2)/9+2mn+9m^2 simplify

\frac{n ^{2}}{9} + 2 mn + 9 m^{2}

Frequently Asked Questions (FAQ)

What is factor y^2-18y+81 ?
The solution to factor y^2-18y+81 is (y-9)^2