Question

Factorise:9x²+4²+z²+12xy+4yz+6zx​

Answer 1

Ans:- 9x^2 + 4^2 + z^2 + 12xy + 4yz + 6zx

= (3x)^2 + (2)^2 + (z)^2 + 2×3x(2) + 2×2×z + 2×z×3x

= (3x + 2 + z)^2

= (3x + 2 + z)(3x + 2 + z)

hope it will help you