Answer:
A
Step-by-step explanation:i took the test
The answer is: [A]: 45x² + 81x + 36 .
_________________________
Explanation: Use "FOIL" technique: (First, Outer, Inner, and Last Terms);
then, combine the "like terms", to simplify.
__________________________________________
(5x+4)(9x+9) = 45x² + 45x + 36x + 35 = 45x² + 81x + 36 .
(which is answer choice: "A".).
________________________________________________
Answer:
(D)14
Step-by-step explanation:
17-2x=-11
17+11=2x
28=2x
28/2=2x/2
14=x
x=14
Answer:
8
Step-by-step explanation:
Sides AB and AC are equal
So,
3x - 5 = 7
+ 5 on both sides
3x = 12
divide both sides by 3
x = 4
Now take the 2x and plug in x for 4.
2(4) = 8
Final answer is 8.
