I'm really struggling with this so any help would be greatly appreciated!
write as2.) 4-36x^2
now apply the formula for the difference of two squares factorization
begin by factoring out the common 63.) 42x^2-24
now, what do you aee?
these are one of those two-way quadratic thingys.4.) 12x^2-5xy-3y^2
here's a tip: forget the y for a while and treat it as and factor that. when finished, attach a y to the constant terms, and that will take care of the y's in your expression
same advice as the last problem5.) -14r^2-11rs+15s^2
treat this as6.) x^4-x^2-30
this is a quadratic in , factor it as you would a quadratic. but instead of you are using
if it is hard for you to visualize, let , then you have . factorize this, and then replace all the 's with 's
what is your and in #2?
as for the others, can you factorize the ones i gave? namely, (you can use the AC-method, please tell me you know what that is ) and (remember how to deal with these guys? think of two numbers that you can multiply to get -30 (the constant term) and add to get -1 (the coefficient of y) then put them in the positions of the *'s as in (y + *)(y + *))