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Ostrovityanka [42]
2 years ago
12

Simplify -b/2a where a =-8 and b =-1

Mathematics
1 answer:
liubo4ka [24]2 years ago
7 0

The correct value of this algebraic expression is <u>-1/16</u>

             

Given the expression, \large \sf \dfrac{-b}{2a}, let's just: change the letters to the numbers and then perform the given operations.

  • According to the rules of signals, we will have to:

*Equal signs will be positive ⇒ (-) (-)= + & (+) (+) = +

*Different signs will be negative ⇒ (-) (+) = - & (+) (-) = -

\\\large \sf \dfrac{-b}{2a} ,  \ a=-8  \ , \ b=-1

\large \sf \dfrac{-(-1)}{2 \cdot (-8)}

\large \sf \dfrac{1}{2 \cdot (-8)}

\large \sf \dfrac{1}{-16}

\blue{\boxed{\large \sf -\dfrac{1}{16} }}\\

Therefore, the final answer to this simplification will be <u>-1/16</u>

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3 years ago
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Step-by-step explanation:

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