Answer:
f(x) = x⁴ - 8x³ + 25x² - 72x + 144
Step-by-step explanation:
f(x) = (x-4)²(x+3i)(x-3i)
= (x²-8x+16)(x²+9)
= x⁴ - 8x³ + 25x² - 72x + 144
That is false because you have to subtract the exponents not divide
Answer: x² + 4x +3=0
Step-by-step explanation:
Add 4x to both sides.
Answer:B, the box on the left used 30 in square units less cardboard
Step-by-step explanation: