Question

Раскройте скобки: – 3a2b3 (2a – 5b6).

Answer 1

18ab(2a-30b)
36a^2b - 540ab^2
(^ - степень)

Answer 2

To expand the expression –3a^2b^3(2a – 5b^6), you need to distribute the –3a^2b^3 to both terms inside the parentheses. Here's the step-by-step expansion:

–3a^2b^3(2a – 5b^6)

Step 1: Distribute –3a^2b^3 to 2a: –3a^2b^3 * 2a = –6a^3b^3

Step 2: Distribute –3a^2b^3 to –5b^6: –3a^2b^3 * (–5b^6) = 15a^2b^9

Putting it all together:

–3a^2b^3(2a – 5b^6) = –6a^3b^3 + 15a^2b^9