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

Question

asked Oct 26, 2023 101k views

1 Answer

Zhenyu Li · Answer 1 · 2023-11-01T09:47:28+0000

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

Given the expression,
$\large \sf (-b)/(2a)$ , let's just: change the letters to the numbers and then perform the given operations.

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

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

$\\\large \sf (-b)/(2a) , \ a=-8 \ , \ b=-1$

$\large \sf (-(-1))/(2 \cdot (-8))$

$\large \sf (1)/(2 \cdot (-8))$

$\large \sf (1)/(-16)$

$\blue{\boxed{\large \sf -(1)/(16) }}\\$

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