Hi there!
[tex] - 2a(a + b - 5) + 3( - 5a + 2b) + b(6a + b - 8)[/tex]
First work out the parenthesis.
[tex] - 2 {a}^{2} - 2ab + 10a - 15a + 6b + 6ab + {b}^{2} - 8b[/tex]
Now collect the terms.
[tex] - 2a {}^{2} + {b}^{2} + 4ab - 5a - 2b[/tex]
Next up we can answer our questions.
The coefficient of the a^2 term is...
B) -2
The coefficient of the ab term is...
B) 4
The coefficient of the b term is...
A) -2
