Answer:
3x(to the 2nd) + 19x-40
Explanation:
3x^2+19x-40
distribute the parenthesis
so 3x*x and 3x*8
which gives you
3x^2+24x
distribute the -5
-5*x and -5*8
-5x-40
now put thos together
3x^2+24x-5x-40
combine like terms
1.6m questions
2.0m answers