Answer:
C. 40-4x-12x^2
Step-by-step explanation:
very simple
? – (20 – 4x – 5x2) = 20 – 7x2, so ? = 20 – 7x2 + (20 – 4x – 5x2)
? = 20 – 7x2 + (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x
Answer:
x= -1.83
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
Answer:
The answer is c or $180
Step-by-step explanation: