同類項をまとめる6(6問)
同類項をまとめて簡単にせよ。
2xy-3y+xy+4x
解答○ ×-8a2+7ab-2b2-5ab
解答○ ×-6xy-4x+2+3xy-4
解答○ ×11a2-3-2a2-4b2+8
解答○ ×-7a2+3ab+12b2-10a2-5ab+2b2
解答○ ×-4xy-9x-15y+1+13xy-21x
解答○ ×問題と解答
2xy-3y+xy+4x3xy+4x-3y -8a2+7ab-2b2-5ab-8a2+2ab-2b2 -6xy-4x+2+3xy-4-3xy-4x-2 11a2-3-2a2-4b2+89a2-4b2+5 -7a2+3ab+12b2-10a2-5ab+2b2-17a2-2ab+14b2 -4xy-9x-15y+1+13xy-21x9xy-30x-15y+1
