Question

Solve the following equation when a = 3 and b = 2. 5a^2 − 10b 9b =

Answer 1

225- 20 +18 = 223
I think bc I don’t know what to do with the other two at the end

Answer 2

This is what u do at the end ( you would multiply 10 times b which is2 so it equals 20. then you do the same thing wit 9b= 18