Question

S square - 3 x + 9 is equal to zero factorise

Answer 1

Answer:

$x^{2} - 3x + 9 = 0 \\ x ^{2} - 3x - 3x + 9 = 0 \\ x(x - 3) - 3(x - 3) = 0 \\ (x - 3)(x - 3) = 0 \\ x - 3 = 0 \: \: or \: \: x - 3 = 0 \\ x = + 3 \: \: \: \: \: \: \: \: \: x = + 3$

Step-by-step explanation:

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