Mathematics
Senior High
(3)のやり方が分からないので教えてください!
54x+y+36xy
(3) (x+3)(x²-3x+9)=(x+3)(x2-x-3+32)
=x°+3°=x+27
(4) (2a-1)(4a² +20 +11-120
122.1 ± 12}
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