Question

factorise: (a)x^2+6x+9 (b)a^4+2a^2b^2+b^4

Answer 1

HI, HERE UR ANSWER

◆x^2+6x+9

=x^2+3x+3x+9

=x(x+3)+3(x+3)

=(x+3)(x+3)

(b)x^4+2a^2×2b^2+b^4

=x^4+4a^2b^2+b^4

Answer 2

a)   (x+ 3)²  or (x+3) (x +3)

b) a⁴ + 2a²b² + b⁴  = (a² + b²)²  or (a² + b²) (a² + b²)