Question

how to expand 2a²b-ab-a​

Answer 1

Answer:

$a(2ab - b - 1)$

Step-by-step explanation:

1) Find the Greatest Common Factor (GCF).

$gcf = a$

2) Factor out the GCF. ( write the GCF first. then, in parentheses, divide each term by the GCF).

$a( \frac{ {2a}^{2}b }{a} + \frac{ - ab}{a} - \frac{a}{a}$

3) Simplify each term in parentheses.

$a(2ab - b - 1)$