因数分解２

[0]X2 -2X -48=

( X -8 )( X +6)

[1]X2 +8X -20=

( X -2 )( X +10)

[2]X2 -8X +7=

( X -7 )( X -1)

[3]X2 -16X +60=

( X -6 )( X -10)

[4]X2 -21X +108=

( X -12 )( X -9)

[5]X2 +X -110=

( X -10 )( X +11)

[6]X2 +5X -24=

( X -3 )( X +8)

[7]X2 +16X +39=

( X +13 )( X +3)

[8]X2 -10X +16=

( X -2 )( X -8)

[9]X2 +21X +110=

( X +11 )( X +10)



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