MA-790

Quadratics by factorisation

Lower Sec Maths · Secondary 2 · Medium · Quadratics by factorisation

Solve the equation

3a^2 = 27

.

$a = 3$ or $a = -3$
$a = 9$ or $a = -9$
$a = 27$
$a = 0$ or $a = 3$

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