因数分解L4-1-2(8問)
次の式を因数分解せよ。
ax2+5ax+6a
解答○ ×2ax2-2ax-40a
解答○ ×4a3+8a2-192a
解答○ ×3cx2+12cx+12c
解答○ ×4x3-4x
解答○ ×a3-6a2b+9ab2
解答○ ×3cx2-3cy2
解答○ ×6x3+12x2y-144xy2
解答○ ×問題と解答
ax2+5ax+6aa(x+3)(x+2) 2ax2-2ax-40a2a(x+4)(x-5) 4a3+8a2-192a4a(a+8)(a-6) 3cx2+12cx+12c3c(x+2)2 4x3-4x4x(x+1)(x-1) a3-6a2b+9ab2a(a-3b)2 3cx2-3cy23c(x-y)(x+y) 6x3+12x2y-144xy26x(x+6y)(x-4y)
