What is factor a^2-22a+121 ?

The solution to factor a^2-22a+121 is (a-11)^2

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factor a^2-22a+121

factor

a^{2} - 22 a + 121

(a - 11)^{2}

Solution steps

a^{2} - 22 a + 121

Rewrite in the form of

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

121 = 1 1^{2}

- 22 a = - 2 a \cdot 11

= a^{2} - 2 a \cdot 11 + 1 1^{2}

Apply Perfect Square Formula:

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

a^{2} - 2 a \cdot 11 + 1 1^{2} = (a - 11)^{2}

= (a - 11)^{2}

\frac{7 - ( - 3 )}{4}

40 x^{3} y^{2}

\frac{i ^{2} + 1}{i ^{6} + 1}

(x - 1) - 1