(4+a)^2 = 16 + 8a + a^2(2x-1)^2 = 4x^2 - 4x + 1(2a+3b)^2 = 4a^2 + 12ab + 9b^2(x^3-3)^2 = x^6 - 6x^3 + 9(11-x)^2 = x^2 - 22x + 121(2x+0.5)^2 = 4x^2 + 2x + 0.25(-3a+b)^2 = 9a^2 - 6ab + b^2(a^2+b^3)^2 = a^4 + 2a^2b^3 + b^6(3-a)(3a+a) = 9 - 3a + 3a - a^2 = 9 - a^2(b+2a)(b-2a) = b^2 - 4a^2(x^2-1)(1+x^2) = x^4 - 1(x-12)(x+12) = x^2 - 144(3a+2b)(2b-3a) = 6b^2 - 9a^2 + 4ab - 6ab = 6b^2 - 9a^2 - 2ab(n-4n^3)(n+4n^3) = n^2 - 16n^6(y+2)(y^2-2y+4) = y^3 + 2y^2 - 4y + 8(3x-y)(9x^2+3xy+y^2) = 27x^3 - 9x^2y - 3xy^2 - 9x^2y + 3xy^2 + y^3 = 27x^3 - 18x^2y + 3xy^2 + y^3
(4+a)^2 = 16 + 8a + a^2
(2x-1)^2 = 4x^2 - 4x + 1
(2a+3b)^2 = 4a^2 + 12ab + 9b^2
(x^3-3)^2 = x^6 - 6x^3 + 9
(11-x)^2 = x^2 - 22x + 121
(2x+0.5)^2 = 4x^2 + 2x + 0.25
(-3a+b)^2 = 9a^2 - 6ab + b^2
(a^2+b^3)^2 = a^4 + 2a^2b^3 + b^6
(3-a)(3a+a) = 9 - 3a + 3a - a^2 = 9 - a^2
(b+2a)(b-2a) = b^2 - 4a^2
(x^2-1)(1+x^2) = x^4 - 1
(x-12)(x+12) = x^2 - 144
(3a+2b)(2b-3a) = 6b^2 - 9a^2 + 4ab - 6ab = 6b^2 - 9a^2 - 2ab
(n-4n^3)(n+4n^3) = n^2 - 16n^6
(y+2)(y^2-2y+4) = y^3 + 2y^2 - 4y + 8
(3x-y)(9x^2+3xy+y^2) = 27x^3 - 9x^2y - 3xy^2 - 9x^2y + 3xy^2 + y^3 = 27x^3 - 18x^2y + 3xy^2 + y^3