factotorise these equations
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ans - (x + 11) (x + 11)
explanation....
(a). x^2 + 22x +121
x^2 + (11+11)x + 121
x^2 + 11x + 11x + 121
x(x + 11) + 11 (x + 11)
(x + 11) (x + 11).
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