Answer:
-4
Step-by-step explanation:
From the qquadratic formula
x1 = [ -b +√(b² - 4ac) ] / 2a
x2 = [ -b -√(b² - 4ac) ] / 2a
When added together the ± square root cancels out leaving
(-b/2a) + (-b/2a) = -b/a
For 2x² + 8x -3 = 0
-b/a = -8/2
-b/a = -4
Answer:

Step-by-step explanation:
We have the product,
.
As, we have the product of a 3×3 and 3×1 matrix, the resultant matrix will be of order 3×1.
So, we get,

⇒ 
⇒
.
Thus, the resulting product is
.
A.
Explanation: The bigger the negative number, the lower the number actually is.
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