Answer:
The answer is (x + 3) (x - 7) = 0
Step-by-step explanation:
x² - 4x = 21
x² - 4x - 21 = 0
x² - 7x + 3x - 21 = 0
x(x - 7) + 3(x - 7) = 0
(x + 3) (x - 7) = 0
Thus, The answer is (x + 3) (x - 7) = 0
<em><u>-TheUnknownScientist</u></em>
Answer:
the correct answer is....
C) 8 and 1 over 2 + 1 over 4
Hope this helps!!!! :)
**(Bojana)**
Step-by-step explanation:
Answer:
no its not a perfect cube.
