# math help

posted by
**sunny**
.

factor:

1) (x+y)^2 - (a+b)^2

= [(x+y) - (a+b)] [(x+y) + (a+b)]

= [x+y-a-b] [x+y+a+b]

2) 6x^4 - 6

= 6(x^4 - 1)

= 6(x^2-1)(x^2+1)

Is this right?

posted by
**sunny**
.

factor:

1) (x+y)^2 - (a+b)^2

= [(x+y) - (a+b)] [(x+y) + (a+b)]

= [x+y-a-b] [x+y+a+b]

2) 6x^4 - 6

= 6(x^4 - 1)

= 6(x^2-1)(x^2+1)

Is this right?