Six and seven on this wkst!!!!!
1 answer:
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Answer:
C & D
Step-by-step explanation:
x² + 3x - 3 = 0
a = co efficient of x² = 1
b= co efficient of x = 3
c = constant = -3
roots = (-b ± )/2a
= (-3± )/2*1
= (-3±)/2
= (-3±√21)/2
1) 
2)
Here, the variable
can assume any value, and usually an inequality presented like this has as a stand-in for all real numbers. If we really wanted to make that fact clear, we could write the two inequalities like this:
Formally, you'd read
as " is an element of the set of real numbers," which is a fancy way of saying that can be any real number.
2)
Here, the variable
Formally, you'd read