Answer:
-5.3a - 12.72b - 8a² + 2ab
16x^4-81y^4 difference of perfect squares...
(4x^2-9y^2)(4x^2+9y^2) that's one of the equivalents...
(2x+3y)(2x-3y)(4x^2+9y^2) that's another one of them...
Answer:
100/10=10
Step-by-step explanation:
XD LOL can i have brainliest