Answer:
Option A. (9x - 12)²
Step-by-step explanation:
We will factorize the given polynomial into perfect square.
The polynomial is 81x²- 216x + 144
We will take 9 common out of this polynomial first
81x² - 216x + 144 = 9(9x² - 24x + 16)
= 9[(3x)² - 2(3)(4)x + 4²]
= 9[(3x - 4)²
= 3²(3x - 4)²
= (9x - 12)²
Therefore, Option A. (9x - 12)² is the answer.
A.
We need to determine whether the polynomial can be factored into perfect squares. If so, factor the polynomial. Otherwise, select that it cannot be factored into a perfect square.
Hence choice A. is correct.
Emma should expect the sum to be equal to five "60 times"
Please kindly check the attached file for explanation
8 different choices
With or without antibrake=2 ways
With or without player=2ways
With or without sunroof=2 ways
Total number of ways=2×2×2=8 ways
1171.65 m