Math Test 7th

Is the algebraic expression for:

The square root of x decreased in 4

• $x^2-4$

• $x^2+4$

• $\sqrt{x-4}$

• $x^3-4$

Is the absolute degree of:

 $7x^3yz+4xy^2x-3xy$  

• 5

• 4

• 3

• 2

The binomials has:

• 1 term

• 2 terms

• 3 terms

• 4 or more terms

Is the literal part of:

 $\frac{4}{5}xyz$  

•  $\frac{4}{5}$  

• xy

• xyz

• yz

Find the numerical value for x=2 and
y = -1 of:

 $xy+x^3-2xy+3y^2x$  

• -6

• -8

• 16

• 8

The algebraic expression is...

• monomial

• binomial

• trinomial

• polynomial

Is the absolute degree of the first and fourth algebraic expression

• 3

• 2

• 4

• 1

 $-6a^2b^3c$  is similar to

•  $-6ab$  

•  $3a^2b^3c$  

•  $-5a^3b^2c$  

•  $6a^2b^3c$  

Reduce similar terms

 $5xy+8z-15xy-20z+1$  

•  $20xy-12z+1$  

•  $28z-10xy+1$  

•  $-10xy-12z+1$  

•  $10xy+12z+1$  

Is the solution of the addition of related terms

• $7x^2+x+1$

• $7x^2+x-1$

• $7x^2-x+1$

• $-7x^2+x+1$