Question

A) 1)4x²-12)m²-a²3)a²-9y²4)49x²-121a²5)x²y²-1d)1)1-9a²2)-n²+b²3)81x²-y²4)100a²-25b²5)c²-a²b²c)1)25-16c²2)4x²-g²3)36p²-c²4)144y²-16k²5)a²c⁴-9​

Answer 1

1)
(2x-1)•(2x+1)
2)
(M-a)•(M+a)
3)
(a-3y)•(a+3y)
4)
(7x-11a)•(7x+11a)

Answer 2

It seems like you have several algebraic expressions, and you may want to simplify them or perform certain operations. Please specify what you would like to do with these expressions, and I'll be happy to assist you. For instance, do you want to simplify, factor, solve for variables, or perform some other operations? Additionally, please clarify if there are specific instructions or questions related to these expressions.