I think it’s A but I’m not sure
Answer:
135
Step-by-step explanation:
Given:

To determine a numerical value for the expression, simply substitute the value of "x" into the expression and simplify the expression, if necessary, to determine a specific number for the expression provided.
Therefore, the value of the expression
when x = 5 is 135.
Learn more about this topic: brainly.com/question/27675691
Answer:
x=-2
Step-by-step explanation:
You need the standard formula
the standard formula will be
-2x²-8x+18
x=-b/2a
=-(-8)/2(-2)
=8/-4
=-2
Answer:
y= -3 + 2x
Step-by-step explanation: