Next year the cost of gasoline will increase $1 25 from the current price. if the cost of a gallon
of gasoline next year will be $4.50. what is the current price of gasoline?

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Ответ:

Animallover100

26.05.2023

Mathematics

Step-by-step explanation:

2x^2 - 4x - 8 = 0

x^2 - 2x - 8 =0

$x = 2 ( - )(+) \sqrt{2 {}^{2} + 4.1.4 } \div 2.1 \\ x = 2( + )( - ) \sqrt{4 + 16} \div 2 \\ x = 2( - )( + ) \sqrt{20} \div 2 \\ x = 2( - )( + )2 \sqrt{5} \div 2 \\ x = 2(1( - )( + ) \sqrt{5} \div 2 \\ thefore \: x = 1 + \sqrt{5} \: or \: x = 1 - \sqrt{5}$

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Next year the cost of gasoline will increase $1 25 from the current price. if the cost of a gallon of gasoline next year will be $4.50. what is the current price of gasoline?