(a+b)(a-b)?

Answer 1

a*a - b*b simple!

Answer 2

Use and learn the FOIL method of solving this type of problem...
F is for First...multiply the first letter of each part in parenthesis or both the a's in this example.
O is for Outside...in this case the first a and the -b would be the outsides.
I is for Inside...or the b and the a.
L is for Last...the -b and the +b.

Now what? Add them all up.
F = a squared (or a^2)
O = -ab
I = ab
L = -b squared (or -b^2)

Since the ab and the -ab added together = 0...all you get is the a squared and the -b squared for an answer of (a^2-b^2).

Make sense? It's a neat trick and you'll use it a LOT.

Answer 3

a^2 -b^2

Answer 4

a^2-b^2

Answer 5

a^2-b^2

Answer 6

a few years ago i think there was more of a fuss about it i worked in a playgroup and we sang baa baa white sheep have you got a light. See all the nanny goats dressed in white'white shoes and stockings white curly hair . See all the nanny goats going to the fair' It did not make sense but that's what we did but i think now it is reverting back to the original. Thank goodness lets face it it is tradition and the children just repeat it parrot fashion not thinking what it means anyway what does it mean

Answer 7

a^2-b^2.

Answer 8

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yes, at my 2 year old sons nursery which is Stockton Riverside College (i'm not afraid to name and shame) they sing baa baa wooley sheep however at home we teach him the original version (which he is able to pronounce easier) as if he even knows what racism means at that age. the world has truly gone mad!

Answer 9

Using the FOIL process, you get:

a^2-ab+ab-b^2

Which simplifies to:

a^2-b^2

Answer 10

(a+b)(a-b)=(a^2)-(b^2)

Answer 11

a^2 + ab - ab + b^2= a^2 + b^2