Question

4x2 + 9y2 + 25Ζ2 + 12 xy + 30yz + 20xz​

Answer 1

Answer:

(2x+3y +5z)2

Step-by-step explanation:

(2x)2+ (3y)2 +(5z)2+2(2x)(3y)+2(3y)(5z)+2(2z) (2x)

use[: ax2+by2+cz2+2ab+2bz+2zx = (a +b+c)2]

hence,

(2x)2+ (3y)2+(5z)2+2(2x)(3y)+2(3y)(5z)+2(2z) (2x) = (2x+3y +5z)2

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