Math, asked by nk1131623, 8 months ago

z
$z^2 + 12z + 27$
factorisation trinomial

Answers

Answered by XxMissPaglixX

8

${\huge{\overbrace{\underbrace{\pink{❥Answer:-}}}}}$

${z}^{2} + 12z + 27$

$= {z}^{2} + (9 + 3)z + 27$

$= {z}^{2} + 9z + 3z + 27$

$= z(z + 9) + 3(z + 9)$

$= (z + 9)(z + 3)$

$z + 9 = 0 \: \: and \: \: z + 3 = 0$

$z = - 9 \: \: and \: \: z = - 3$

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Answered by adityachoudhary2956

4

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