Difference of Squares:
x2-y2=(x+y)(x-y)
Perfect Square Trinomial:
x2+2xy+y2=(x+y)^2
Difference of Cubes:
x3-y3=(x-y)(x2+xy+y2)
Sum of Cubes:
x3-y3=(x-y)(x2-xy+y2)
x2-y2=(x+y)(x-y)
Perfect Square Trinomial:
x2+2xy+y2=(x+y)^2
Difference of Cubes:
x3-y3=(x-y)(x2+xy+y2)
Sum of Cubes:
x3-y3=(x-y)(x2-xy+y2)
Factoring Differences of Squares:
ReplyDeleteFactor each polynomial.
4a2-64
There is a common factor of 4.
4a2-64=4(a2-16) -Factor out the common factor.
= 4(a+4)(a-4) Factor out the difference of squares.