Answer:
36
Step-by-step explanation:
Compare what you have to the square ...
(a +b)^2 = a^2 +2ab +b^2
Your "a" is √(25x^2) = 5x
Your "2ab" is -60x. Since you know "a", you can find "b".
2ab = -60x
2(5x)b = -60x . . . . . . . substitute for "a"
b = -60x/(10x) = -6
Then the missing term is b^2 = (-6)^2 = 36.
Your trinomial is ...
25x^2 -60x +<u>36</u>
Answer:
Step-by-step explanation:
- Cost of a bottle of water = 10
- Cost of pizza = 60
- Total amount = 120
- Number of water bottles = x
<u>Equation:</u>
- 10x + 60 = 120
- 10x = 120 - 60
- 10x = 60
- x = 60/10
- x = 6
