因数分解L2-1-3(8問)
次の式を因数分解せよ。
x2+3xy+2y2
解答○ ×x2-9xy+8y2
解答○ ×a2+12ab+35b2
解答○ ×a2-14ab+48b2
解答○ ×x2-17xy+72y2
解答○ ×a2+15ab+54b2
解答○ ×x2+10xy+16y2
解答○ ×a2-12ab+27b2
解答○ ×問題と解答
x2+3xy+2y2(x+y)(x+2y) x2-9xy+8y2(x-y)(x-8y) a2+12ab+35b2(a+5b)(a+7b) a2-14ab+48b2(a-6b)(a-8b) x2-17xy+72y2(x-8y)(x-9y) a2+15ab+54b2(a+6b)(a+9b) x2+10xy+16y2(x+2y)(x+8y) a2-12ab+27b2(a-3b)(a-9b)
