Mathematics
Senior High
（7）、（8）教えてください💦
R
(ɔ)
+x¯y−x¯— y
(7) x²+2ax-3a²+4x+8a +3
(1) 2 ax²-8a
(8) 2x²-xy-3y²-3x+7y-2
(2) ax²+b3'-az²-bx"
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