Question

Simplify. Please show all of your work.

5a^2 – 12b^2 – 3(a^2 – 10b^2)

Answer 1

\(\Large \color{midnightblue}{\rightarrow 5a^2 - 12b^2 - 3a^2 - 30b^2 }\)
\(\Large \color{midnightblue}{\rightarrow -42b^2 - 2a^2 }\)
\(\Large \color{midnightblue}{\rightarrow -2(21b^2 + a^2) }\)

Please tell me if you have any kind of confusion.