Answer:
0
Step-by-step explanation:
- 1 -3 - (- 9) + (- 5) = - 4 + 9 - 5 = 5 - 5 = 0
The answer is 0
No it is less than 18.866.
technically it is in the millions place, and has the value of 3,000,000
Answer: Mustafa is incorrect. He made a mistake in step 2.
Step-by-step explanation: Mustafa was certainly correct in step 1 that x(9x+3) + 3(x+3) is 9x^2 + 6x + 9. However when he was factoring, he made a mistake.
(3x + 3)^2 is NOT equal to 9x^2 + 6x + 9. Rather, (3x + 3)^2 is equal to 9x^2 + 18x + 9. If you want to double check this, use FOIL.
The correct factoring of 9x^2 + 6x + 9 is actually 3(3x^2 + 2x + 3). So, Mustafa made a mistake in step 2.
