Report copyright - 3年数学 教科書解答①...x2 — 2x — 3 X 2 — 10x+ 16 x 2 + 3x 2 4x— 12 X 2 — 7X-l- 12 15 a 2 — 15a 56 x2—x— 30 x2 + 0.2x — 0.08 15 x2 — 49 a 2 + 20b + b2 x2
Please pass captcha verification before submit form
Please pass captcha verification before submit form