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  • 12-06-2020
  • Mathematics
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solve the quadratic equation 8x^2-5x-4=0
give your answer to 3 significant figures

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RVADAMARAJANCHITHRA
RVADAMARAJANCHITHRA RVADAMARAJANCHITHRA
  • 12-06-2020

Answer:

-1.09 or 0.461

Step-by-step explanation:

The quadratic formula is : -[b plus or minus square root of (b^2 - 4ac)] divided by 2a.

a quadratic equation has 2 answers. look below:

Equation1: 5 + square root of -5squared minus 128 / 16 = 5 -3 time square root of 17divided by 16 = 0.461

Equation 2: 5-3 times square root of 17 divided by 16 = -1.09

Hope this helps

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