Question

What is (16x^2 − 5) − (4x^2 + 10)?

Answer 1

\(\Large \color{MidnightBlue}{\Rightarrow 16x^2 -5 - 4x^2 - 10 }\)
After opening the brackets.

Operate on like terms.
\(\Large \color{MidnightBlue}{\Rightarrow (16 - 4)x^2 - (5 + 10) }\)
\(\Large \color{MidnightBlue}{\Rightarrow 12x^2 - 15 }\)
\(\Large \color{MidnightBlue}{\Rightarrow 3(4x^2 - 5) }\)
You may or may not perform the last step.

Answer 2

thanks!

Answer 3

Yw :)