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14 April, 01:55

9xsquared + 12x = - 4

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  1. 14 April, 05:35
    0
    x = - 0.67

    Step-by-step explanation:

    Step 1:

    Solve for x using quadratic formula for the equation 9x² + 12x + 4 = 0

    Here, a = 9, b = 12 and c = 4

    ⇒ x = ( - b ±√b² - 4ac) / 2a

    ⇒ x = (-12 ±√144 - 4*9*4) / 18

    ⇒ x = (-12 ±0) / 18 = - 12/18 = - 2/3

    ⇒ x = - 0.67
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