Factor the expression using the two different techniques listed for Parts 1(a) and 1(b).
(a) Factor the given expression using the GCF monomial.
(b) Factor the given expression using the difference of squares.
please show work so I can understand how to do it.
(a) 36 and 81 have a common factor of 9, and you can also factor out a^4 and b^10 on both sides... which gives you 9a^4b^10( 4 - 9a^12b^10)
(b) difference of squares formula: a^2-b^2 = (a-b)(a+b). 36 and 81 are both perfect squares, and all of the powers are even. Take the square root of a^2 and b^2, and you get... (6a^2b^5 - 9a^8b^10)(6a^2b^5 + 9a^8b^10). Hope this was helpful (and correct lol)