What two numbers multiply to get 18 but add to get -12
1 answer:
Answer:
-6+3
and -6-3
Step-by-step explanation:
xy = 18
x+y = -12
y = -12-x
substitution method:
x(-12-x) = 18
-12x - x² - 18 = 0
-x² - 12x - 18 = 0
-(x² + 12x + 18) = 0
used quadratic formula:
(-12±√144 - 4(18)) ÷ 2
(-12 ±
) ÷ 2
(-12 ± 6
) ÷ 2
= -6 ± 3
You might be interested in
She needs one more cup of flower
Answer:
where is the function? where are the equations?
Answer:
x=10
Step-by-step explanation:
Answer:
its 10 cuz 240 x 984 = 12009
Step-by-step explanation: