Answer:
−12s2+11st−2t2
Step-by-step explanation:
Hope this helps!
-12s - 2t
First simplify the like terms.
-3s * 4s = -12s
(-12s + 2t)(-t)
Simplify the like terms again.
2t * (-t) = -2t
-12s - 2t.
Or
12s + 2t. (You can get this by multiplying the equation by -1)
plot the numbers
Add 5 to both sides
x = 6
Add 3 to both sides
x = -15 +3
x = -12
168.5