Which expressions are differences of squares?
choose all answers that are correct.
( explain)
2a^4 – 49b^6
25d^12 – 36f^8
81p^6 – 16q^2
100s^9 – 9t^3

All are correct but 100s^9-9t^3 this one is incorrect I just took the quiz

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this