Q.Use the difference of two squares method to factorise: the answer is but i have absolutely no idea how to work it out. thanks
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Originally Posted by waven Q.Use the difference of two squares method to factorise: the answer is but i have absolutely no idea how to work it out. Do you know how to factor a difference of squares? Use Compare this with what you have. Then you should see that and Go ahead and substitute, and then simplify.
Originally Posted by Reckoner Do you know how to factor a difference of squares? Use Compare this with what you have. Then you should see that and Go ahead and substitute, and then simplify. ok i got thats definately wrong, could someone perhaps show me the full working please from beginning to end?
Originally Posted by waven ok i got thats definately wrong, could someone perhaps show me the full working please from beginning to end? You have said that which is incorrect. since subtracting a negative means you add it on. Doing that gives you 6(2y+2) = 12y+12 = 12(y+1) ----------
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