The solution of the equation x2+7x is 0, -7 using the quadratic formula.
Step-by-step explanation:
x2 + 7x = 0
-b ± √
b2 - 4(ac)/ 2a
substitution,
a = 1, b = 7, c = 0
= -7 ± √(7)2 - 4(1 x 0) / 2 x 1
= - 7
± 7 / 2
x = 0 , -7
Answer:
Yes
Step-by-step explanation:Because it has 6 sides
Answer:
D
Cost per person × number of persons = total cost
29.50 × 3 = x
Answer:
x=
Step-by-step explanation:
2nd step: 
third step: 
fourth step: 
answer: x=