式の展開3

[0]5( X -6 )( X -4)=

5X2 -50X +120

[1]3( X +12 )2=

3X2 +72X +432

[2]6( X -1 )( X -12)=

6X2 -78X +72

[3]5( X -3 )( X -6)=

5X2 -45X +90

[4]2( X -6 )( X -2)=

2X2 -16X +24

[5]6( X -8 )( X -2)=

6X2 -60X +96

[6]7( X +9 )( X -12)=

7X2 -21X -756

[7]2( X -9 )( X +8)=

2X2 -2X -144

[8]3( X -13 )( X -10)=

3X2 -69X +390

[9]8( X +4 )( X -12)=

8X2 -64X -384




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