Respuesta :
Answer:
7a(3-a)
Step-by-step explanation:
21a-7a²
there GCF is 7
and has the same variable a
=7a(3-a)
You can always just Square root the seven a square. And then just square root the other side which is 21 a.
Answer:
7a(3-a)
Step-by-step explanation:
21a-7a²
there GCF is 7
and has the same variable a
=7a(3-a)