There is no common factor between 15, 17 and 18 because 17 is prime.
15z² +17z - 18 =
d = 17² - 4.15.-18
d = 289 + 1080
d = 1369
z = (-17 +/- \/1369) : 2 * 15
z = (-17 + 37) : 30
z' = 20 : 30 = 2/3
z" = (-17 - 37) : 30
z" = -54 : 30 = -1.8
<><
Answer:
−2x^2+6x
Explanation:
You just have to distribute meaning you have to multiply -2x to the equation.
Answer:
-4
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
32 + 6 - 31 = 7 not -7
Answer:
if you have to add it is 17
if you have to divide it is 1.5
if you have to subtract it is 16
Step-by-step explanation:
