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Factorisation — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSFactorisation2 Marks
Question
Factorise:
$z^2+19 z-150$
✓

Answer

$z^2+19 z-150$
$=z^2+25 z-6 z-150$
$\{-150 = 25 × (-6), 19 = 25 - 6\}$
$= z(z + 25) - 6(z + 25)$
$ = (z + 25)(Z - 6)$

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