同類項をまとめる5(6問)
同類項をまとめて簡単にせよ。
-4a2+3+5a2+6
解答○ ×7x2-2x-x2+9
解答○ ×3a2-4a+1-4a2-4a
解答○ ×-3x2+2x+8-2x2-15
解答○ ×-3y2+8y-11+3y2-6y+13
解答○ ×8c2-7c-2+3c2+7c-15
解答○ ×問題と解答
-4a2+3+5a2+6a2+9 7x2-2x-x2+96x2-2x+9 3a2-4a+1-4a2-4a-a2-8a+1 -3x2+2x+8-2x2-15-5x2+2x-7 -3y2+8y-11+3y2-6y+132y+2 8c2-7c-2+3c2+7c-1511c2-17
