Operations with Polynomials

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•
Mathematics
•
9th 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. It can be expressed in the form: a_n*x^n + a_(n-1)*x^(n-1) + ... + a_1*x + a_0, where a_n, a_(n-1), ..., a_0 are constants.
2.
FLASHCARD QUESTION
Front
What are the degrees of polynomials?
Back
The degree of a polynomial is the highest power of the variable in the polynomial. For example, in the polynomial 5x^3 - 13x^2 + 24x + 12, the degree is 3.
3.
FLASHCARD QUESTION
Front
How do you multiply two polynomials?
Back
To multiply two polynomials, use the distributive property (also known as the FOIL method for binomials) to multiply each term in the first polynomial by each term in the second polynomial, then combine like terms.
4.
FLASHCARD QUESTION
Front
What is the result of multiplying (x + 2)(x + 3)?
Back
The result is x^2 + 5x + 6.
5.
FLASHCARD QUESTION
Front
How do you simplify the expression (4x^2 + x) - (x^2 + 2x)?
Back
Combine like terms: (4x^2 - x^2) + (x - 2x) = 3x^2 - x.
6.
FLASHCARD QUESTION
Front
What is the formula for the square of a binomial (a - b)^2?
Back
The formula is (a - b)^2 = a^2 - 2ab + b^2.
7.
FLASHCARD QUESTION
Front
What is the product of (x - 2)^2?
Back
The product is x^2 - 4x + 4.
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