Answer: 2.7 or in money form $2.70
Step-by-step explanation:
Answer:
x⁴ - 11x² + 28
= x⁴ - 4x² - 7x² + 28
= x²(x² - 4) - 7(x² - 4)
= (x² - 7)(x² - 4)
the answer is 7x, becuase -1 + 8 is 7