(-6a9-3)(-9a9)
Apply the distributive property.
-6a9(-9a9)-3(-9a9)
Simplify the expression.
Rewrite using the commutative property of multiplication.
-6⋅-9(a9a9)-3(-9a9)
Multiply -9 by -3.
-6⋅-9(a9a9)+27a9
-6⋅-9(a9a9)+27a9
-6⋅-9(a9a9)+27a9
Multiply a9 by a9 by adding the exponents.
Use the power rule aman=am+n to combine exponents.
-6⋅-9a9+9+27a9
Add 9 and 9.
-6⋅-9a18+27a9
-6⋅-9a18+27a9
Multiply -6 by -9.
54a18+27a9
54a18+27a9
Simplify (-6a^9-3)(-9a^9)