This is how to solve this
Answer: That would be the third option
Step-by-step explanation:
Use the discrimant to determine the nature of the roots
Here's the formula of the discriminant from the equation ax²+bx+c = 0
D = b² - 4ac
If the discriminant is greater than 0, the quadratic equation has 2 real different roots
If the discriminant is equal to 0, the quadratic equation has only one real root.
If the discriminant is less than 0, the quadratic equation doesn't have real root.
Find the discriminant of the equation x² - 2x + 1 = 0
D = b² - 4ac
D = (-2)² - 4(1)(1)
D = 4 - 4
D = 0
The equation has only one real root.
Answer:
it is 198:36
Step-by-step explanation:
11×18 and 2×18
8x + 3c = 2200
11xc= 2200
2200÷11
200
200xc
