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hammonangelo25
13.08.2020 •
Mathematics
Find the difference of (3x^2 – 5x + 7) and (x^2+ 2x - 1).
a. Is 3x^2 – 5x + 7 a polynomial? If not, give an explanation.
b. Is x^2+ 2x – 1 polynomial? If not, give an explanation.
c. Is the difference a polynomial? If not, give an explanation.
d. If the difference is a polynomial, identify the constant term.
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Ответ:
Step-by-step explanation:
A polynomial is a mathematical expression in sum of powers with one or more variables multiplied by coefficients.
a) 3x² - 5x + 7 is a polynomial
b) x² + 2x - 1 is a polynomial
c) 3x² - 5x + 7 - [x² + 2x -1 ]= 3x² - 5x + 7 - x² - 2x + 1
{add like terms} = 3x² - x² - 5x - 2x +7 +1
= 2x² - 7x + 8
2x² - 7x + 8 is a polynomial
d) Constant term = 8
=
Ответ:
125.7
Step-by-step explanation:
I just googled it lol