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Evgesh-ka [11]
4 years ago
15

Subtract these polynomials (3x^2x+4)-(x^2+2x+1)

Mathematics
2 answers:
harina [27]4 years ago
6 0
2x^2+3. the 2x cancel out and the rest is combining like terms
Aleks04 [339]4 years ago
3 0

Answer:

(with a + between 2 and x in the first polynomial) 2x^2-x+3

Step-by-step explanation:

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Explanation:

The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment. The dependent variable is the one that depends on the value of some other number. ... Another way to put it is the dependent variable is the output value and the independent variable is the input value. So for y=x+3, when you input x=2, the output is y = 5. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. Independent variable – the variable that is altered during a scientific experiment. Dependent variable – the variable being tested or measured during a scientific experiment. Controlled variable – a variable that is kept the same during a scientific experiment.

Note:

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