(a + 2 - b) (a + 2 + b)
(a+b)(3b+1)
(b + 8)(b + 4)
(b + 4)(b + 4)
(a + x^2)(b + y^2)
(a + 2 - b) (a + 2 + b)
(a+b)(a squared-ab+b squared)
The sum of two squares cannot be factored. If that's -a^2 + b^2, that's b^2 - a^2, which factors to (b - a)(b + a)
(a+b)(3b+1)
(b + 8)(b + 4)
(b + 4)(b + 4)
(a + x^2)(b + y^2)
(b + 2c)(b - c)
4
(b + 8)(b - 1)
6
Remember to factor out the GCF of the coefficients if there is one. A perfect square binomial will always follow the pattern a squared plus or minus 2ab plus b squared. If it's plus 2ab, that factors to (a + b)(a + b) If it's minus 2ab, that factors to (a - b)(a - b)