Question

using long division method solve .
$(3x {}^{2} - 48) \div (x - 4)$
pls help very urgent​

Answer 1

Step-by-step explanation:

$= \frac{{3x}^{2} - 48}{x - 4} \\ = \frac{3( {x}^{2} - 16)}{x - 4} \\ = \frac{3( {x}^{2} - {4}^{2} )}{x - 4} \\ = \frac{3(x + 4)(x - 4) }{x - 4} \\ = 3(x + 4)$

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