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Homework Practice

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Introduction to Polynomials: Practice 1

Section A: Core Practice

Question 1mcq
In 5x2−3x+75x^2-3x+7, which part is the constant term?
A.77
B.xx
C.5x25x^2
D.−3x-3x
Question 2mcq
Which option is an equation, not just an algebraic expression?
A.7a−4b7a-4b
B.2x+32x+3
C.x2−5xx^2-5x
D.2x+3=112x+3=11
Question 3mcq
Evaluate 2x+52x+5 when x=3x=3.
A.1111
B.1313
C.1010
D.88
Question 4mcq
Which expression is a polynomial in one variable?
A.3x2−2x+53x^2-2x+5
B.x+1\sqrt{x}+1
C.2x−1+32x^{-1}+3
D.1x+2\frac{1}{x}+2
Question 5mcq
Which expression is not a polynomial?
A.77
B.3x3−x+13x^3-x+1
C.x−2+4x^{-2}+4
D.x2+4xx^2+4x

Section B: Application Practice

Question 6mcq
In −4x3+7x−2-4x^3+7x-2, what is the coefficient of x3x^3?
A.44
B.−2-2
C.−4-4
D.77
Question 7mcq
Which expression is a polynomial in one variable?
A.3x2−2x+53x^2-2x+5
B.x+1\sqrt{x}+1
C.1x+2\frac{1}{x}+2
D.2x−1+32x^{-1}+3
Question 8mcq
In 5x2−3x+75x^2-3x+7, which part is the constant term?
A.77
B.5x25x^2
C.−3x-3x
D.xx
Question 9mcq
Which option is an equation, not just an algebraic expression?
A.2x+32x+3
B.7a−4b7a-4b
C.2x+3=112x+3=11
D.x2−5xx^2-5x
Question 10mcq
Evaluate 2x+52x+5 when x=3x=3.
A.1313
B.1111
C.88
D.1010