Answer:
0
Step-by-step explanation:
A=-2;b=9;c=9;
delta=b^2-4*a*c
root1=(-b+(delta^(0.5)))/(2*a)
<span>root2=(-b-(delta^(0.5)))/(2*a)
delta =153
root1 = -0.8423
root2 =<span> 5.3423
Correct Answer is D</span></span>
Answer:
X<-15
Step-by-step explanation:
-3x-42>3 collect like terms
-3x>3+42
-3x>45 divide both side by -3
X<-15
Hint ; when you divide both side by a negative sign, the sign changes.
Answer:
6 = n
Step-by-step explanation:
-3=n/2-6
Add 6 to each side
-3+6 = n/2 -6+6
3 = n/2
Multiply each side by 2
3*2 = n/2 *2
6 = n
