因数分解１

[0]X2 -26X +169=

( X -13 )2

[1]X2 +10X +25=

( X +5 )2

[2]X2 -18X +81=

( X -9 )2

[3]X2 -30X +225=

( X -15 )2

[4]X2 +22X +121=

( X +11 )2

[5]X2 -16X +64=

( X -8 )2

[6]X2 -4X +4=

( X -2 )2

[7]X2 -20X +100=

( X -10 )2

[8]X2 +30X +225=

( X +15 )2

[9]X2 -2X +1=

( X -1 )2



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