Adding, Subtracting and Multiplying Polynomials

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a polynomial?
Back
A polynomial is a mathematical expression consisting of variables (also called indeterminates) raised to non-negative integer powers and coefficients. For example, 2x^2 + 3x - 5 is a polynomial.
2.
FLASHCARD QUESTION
Front
What does it mean to add polynomials?
Back
Adding polynomials involves combining like terms, which are terms that have the same variable raised to the same power.
3.
FLASHCARD QUESTION
Front
What is the process of subtracting polynomials?
Back
Subtracting polynomials involves changing the signs of the terms in the polynomial being subtracted and then combining like terms.
4.
FLASHCARD QUESTION
Front
How do you multiply two binomials?
Back
To multiply two binomials, use the distributive property (FOIL method): First, Outer, Inner, Last. For example, (a + b)(c + d) = ac + ad + bc + bd.
5.
FLASHCARD QUESTION
Front
What is the result of (x - 7)(x + 7)?
Back
The result is x^2 - 49, which is a difference of squares.
6.
FLASHCARD QUESTION
Front
How do you find the difference of two polynomials?
Back
To find the difference, subtract the second polynomial from the first by changing the signs of the second polynomial and then combining like terms.
7.
FLASHCARD QUESTION
Front
What is the simplified form of (3 - 2x + 2x^2) - (4x - 5 + 3x^2)?
Back
The simplified form is -x^2 - 6x + 8.
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