Question

5 x square +13 X - 18 barabar 0​

Answer 1

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$\implies 5 x^2 + 13x - 18 = 0 \\ \implies 5 x^2 + (18 - 5)x - 18 = 0 \\ \implies 5 x^2 + 18x - 5x - 18 = 0 \\ \implies x(5x + 18) - 1(5x + 18) = 0 \\ \implies (5x + 18)(x -1 ) = 0 \\ \implies 5x +1 8 = 0 \: or \: x - 1 = 0 \\ \implies 5x = 0 - 18 \: or \: x = 0 + 1 \\ \implies 5x = - 18 \: or \: x = 1 \\ \implies x = \frac{ - 18 }{5} \: or \: x = 1$

Answer 2

Answer:

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