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12 September, 11:39

Solve the equation using the quadratic formula

2x^2=8x+3

The solution sets are

+2
Answers (1)
  1. 12 September, 12:02
    0
    (-0.35, 4.35) to the nearest hundredth.

    Step-by-step explanation:

    2x^2=8x+3

    2x^2 - 8x - 3 = 0

    The formula for the solution of ax^2 + bx + c = 0 is:

    x = [-b + / - sqrt (b^2 - 4ac) ] / 2a.

    Here x = [ - (-8) + / - sqrt ((-8) ^2 - 4*2*-3) ] / 4

    = (8 + / - sqrt (88)) / 4

    = 2 + / - sqrt88/4

    = - 0.35, 4.35.
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