Question

(x-4)(2x+3)=2x² please find out the value of x

Answer 1

(x – 4) (2x + 3) = 2x2

⇒ x (2x + 3) – 4 (2x + 3) = 2x2

⇒ 2x2 + 3x – 8x – 12 = 2x2

⇒ 2x2 + 3x – 8x – 2x2 = 12

⇒ -5x = 12 ⇒ x = 12/-5 = -12/5

∴ x = -2. 2/5

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Answer 2

SOLUTION :

$(x - 4)(2x + 3) = 2x {}^{2} \\ \\ = > 2x {}^{2} + 3x - 8x - 12 = 2x {}^{2} \\ \\ = > - 5x - 12 = 0 \\ \\ = > - 5x = 12 \\ \\ = > x = \frac{12}{ - 5}$

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