Question

Factorise the expression 49x²+81y² + 144z² - 126xy - 216yz + 168 xz


pls fast

Answer 1

Refer to the above attachment !!

#Algebraic Expressions !!

#Polynomials

Answer 2

Given Equation is 49x^2 + 81y^2 + 144z^2 - 126xy - 216yz + 168xz.

It can be written as

= > (7x)^2 + (9y)^2 + (12z)^2 - 2(7x)(9y) - 2(9y)(12z) + 2(7x)(12z)

It is in the form of a^2 + b^2 + c^2 - 2ab - 2bc + 2ac = (a - b + c)^2

= > (7x - 9y + 12z)^2.

Hope it helps!