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nydus/The First Steps in AlgebraPublic

Page 84 of 227

Table of Contents

Case VI.

$4 a^{2} - 12 a b + 9 b^{2}$ .

$9 a^{2} - 24 a b + 16 b^{2}$ .

$x^{2} + 8 x y + 16 y^{2}$ .

$x^{2} - 8 x y + 16 y^{2}$ .

$4 x^{2} - 20 x y + 25 y^{2}$ .

$1 + 20 a + 100 a^{2}$ .

$49 a^{2} - 28 a + 4$ .

$36 a^{2} + 60 a b + 25 b^{2}$ .

$81 x^{2} - 36 b x + 4 b^{2}$ .

$m^{2} n^{2} + 14 m n x^{2} + 49 x^{2}$ .

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