因数分解１

[0]X2 +26X +169=

( X +13 )2

[1]X2 -8X +16=

( X -4 )2

[2]X2 -14X +49=

( X -7 )2

[3]X2 +12X +36=

( X +6 )2

[4]X2 +30X +225=

( X +15 )2

[5]X2 -10X +25=

( X -5 )2

[6]X2 +16X +64=

( X +8 )2

[7]X2 -12X +36=

( X -6 )2

[8]X2 +4X +4=

( X +2 )2

[9]X2 -22X +121=

( X -11 )2



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