-7a^5b^6c^3+21b^5c^2-105a^4c^6

Question

-7a^5b^6c^3+21b^5c^2-105a^4c^6

Answer 1

—7a⁵b⁶c³ + 21b⁵c² — 105a⁴c⁶ = —7c² × (ca⁵b⁶ — 3b⁵ + 15(ac)⁴).