Maths

Factorise

100

^{x^2−9}

(x−3)(x+3)

200

x^3+3x^2−x−3

=(x+3)(x−1)(x+1)

300

x4−16

(x−2)(x+2)(x^2+4)

400

x^6−64y^6

(x−2y)(x+2y)(x^2+2xy+4y^2)(x^2−2xy+4y^2)

500

x^6+x^3+1

(x^2+x+1)(x^4−x^2+1)