Quiz about SUMMER CLASS GRADE 7 REVIEWER

Question 1

Which of the following statements is FALSE about algebraic expressions and polynomials?

Accepted Answer

Algebraic expressions are special kinds of polynomials.

Answer

A polynomial is an algebraic expression that contains one term or more.

Answer

All polynomials are algebraic expressions.

Answer

An algebraic expression consists of algebraic terms and operation symbols.

Question 2

In $$-12x^3$$ , what do you call the $$x$$ ?

Accepted Answer

variable

Answer

constant

Answer

term

Answer

exponent

Question 3

How many terms are there in $$2x^3+3x+4y+6?$$

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 4

In $$12x^2-12x+33,$$ what is the constant?

Accepted Answer

$$33$$

Answer

$$12x$$

Answer

$$x$$

Answer

$$12x^2$$

Question 5

What is the degree of the polynomial $$8a^3-2abv+5d?$$

Accepted Answer

3

Answer

1

Answer

2

Answer

0

Question 6

Which of the following is not a polynomial?

Accepted Answer

$$20y^{\frac{1}{4}}+4$$

Answer

$$-12x^5$$

Answer

$$15$$

Answer

$$0.2+n^3$$

Question 7

If $$a=2$$ and $$b=-3,$$ what is the value of $$5a-4b?$$

Accepted Answer

$$22$$

Answer

$$-2$$

Answer

$$2$$

Answer

$$-22$$

Question 8

Find the sum of $$\left(15a^2b\right)+\left(-3a^2b\right).$$

Accepted Answer

$$12a^2b$$

Answer

$$12ab^2$$

Answer

$$-12ab^2$$

Answer

$$-12a^2b$$

Question 9

Simplify $$\left(x^2-4x+5\right)+\left(8x-1\right).$$

Accepted Answer

$$x^2+4x+4$$

Answer

$$x^2+12x+6$$

Answer

$$x^2-4x+4$$

Answer

$$x^2-12x-6$$

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