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3 years ago

Your help is deeply is appreciated.

Mathematics

2 answers:

Arisa [49]3 years ago

8 0

The answer should be x=3

MrRa [10]3 years ago

6 0

Answer:

x = 3

Step-by-step explanation:

$\\4x^2-2x=30\\\\x=3\\4(3)^2-2(3)=30\\4(9) - 6 =30\\36 - 6 = 30\\30 = 30 \\\\x=4\\4(4)^2-2(4)=30\\4(16) - 8 =30\\64 - 8 = 30\\56\neq 30$

56 is not equal to 30

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daser333 [38]

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3 years ago

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2 years ago

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3 years ago

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katrin [286]

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Step-by-step explanation:

The question is missing, i guess you want to know the number of different rings that the jewelry has:

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3 years ago

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sashaice [31]

Okay. For these types of problems, you must do order of operations (PEMDAS). Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. Mind you that you do these steps from left to right, and multiplication and division is done from left to right. Same thing with addition and subtraction. With that being said, here are your answers if you do the expressions correctly.

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3 years ago