Answer:
x₁ = -4
x₂ = 3
Step-by-step explanation:
x²+ x + 12 = 0
x = {-1±√((1²)-(4*1*-12))} / (2*1)
x = {-1±√(1+48)} / 2
x = {-1±√49} / 2
x = {-1±7} / 2
x₁ = {-1-7} / 2 = -8/2 = -4
x₂ = {-1+7} / 2 = 6/2 = 3
Check:
x₁
-4² + (-4) - 12 = 0
16 - 4 - 12 = 0
x₂
3² + 3 - 12 = 0
9 + 3 - 12 = 0
Answer:
D, supplementary, BC, D
Step-by-step explanation:
Answer:
Mr. kelly can make 18 prices of wood that are exactly 1/3 of a foot.
from Monday to Wednesday it's a 7 degree F difference.
The temperature are 5 am is -3 degrees F
The order from coldest to warmest is -6, -3, 0, 1, 4
The sum is 60.50.
Write what??
<em>n single power??</em>
