Question

factorize 81x²+4y²+z²+36xy+4xz+18xz​

Answer 1

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Answer 2

Answer:

(9x+2y+z)^2

Step-by-step explanation:

Using (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca

81x²+4y²+z²+36xy+4xz+18xz

(9x)^2+(2y)^2+(z)^2+2*9x*2y+2*2y*z+2*z*9x

=(9x+2y+z)^2