Question

9х2
$9x ^{2} + 6xy + y { \\ }^{2}$
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Answer 1

Answer:

Answer is 18 .......

......

Answer 2

Answer:

$9x^2 + 6xy + y^2$  $= (3x + y)^2$

Step-by-step explanation:

$9x^2 + 6xy + y^2$

$= (3x)^2 + 2.3x.y + y^2$

$= (3x + y)^2$  [using the identity $(a + b)^2 = a^2 + 2ab + b^2$]