X² +18x = 0
To complete the square we are going to use formula a² +2ab +b² = (a+b)²
x² +2*9*x = 0
x² +2*9x+9² = 9²
(x+9)² = 9²
√(x+9)² = +/-√9²
x+9 = 9, or x+9 = -9
x=0, or x= - 18
The equation could be solved different way
x² +18x = 0
x(x+18) = 0
x=0 or x+18=0
x=0 or x=-18
Answer:
10cm (I think)
Step-by-step explanation:
2/3 = .66666666 x 6 = 4
4 +6 = 10
Answer:
x= 5
Step-by-step explanation:
20x=100
divide 100 by 20
x=5
Answer:
D) 5 7/9
Work Shown:
-52/-9 = 5 7/9 = 5.7777777778
Answer:
number 2 or 4 but i think 2
Step-by-step explanation:
