Factorise
25x^2+9y^2+9z^2-30xy-18yz+30xz
Someone plz tell fast ....it's urgent
Thank you^_^
Answers
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Answer:
(5x - 3y - 3z )^2
Step-by-step explanation:
25x^2 + 9y^2 + 9z^2 - 30xy - 18 yz + 30xz
= (5x)^2 + (3y)^2 + (3z)^2 - 2(15xy + 9yz + 15 xz)
= ( 5x - 3y - 3z )^2
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