CAPS Grade 9 Algebraic Expressions Quiz

Simplify:  $-26a-\left(-3a\right)$  

•  $-29a$  

•  $+29a$  

•  $-23a$  

•  $+23a$  

Simplify:  $\left(d\right)\left(-2d^2\right)\left(-3d^3\right)$  

•  $-5dd^2d^3$  

•  $-6dd^2d^3$  

•  $-5d^6$  

•  $-6d^6$  

•  $+6d^6$  

Determine;  $\sqrt{25y^{10}}$  

•  $5y^{10}$  

•  $5y^5$  

•  $5y^3$  

•  $5y$  

Determine; $\sqrt{9x^{12}+16x^{12}}$  

•  $25x^{12}$  

•  $5x^{12}$  

•  $5x^6$  

•  $25x^6$  

The number that does not change in an an algebraic expression is called a constant term.

• False

• True

How many terms are in the following algebraic expression: $-x-2+\frac{3}{x^2+1}+4x^3$  

•  $6$  

•  $5$  

•  $4$  

•  $3$  

What is the coefficient of  $y$  in the following algebraic expression:  $y^3-y+2-3y^2$  

•  $3$  

•  $-3$  

•  $1$  

•  $-1$  

What is the value of the  the following algebraic expression: $-x-2+\frac{3}{x^2+1}+4x^3$  when  $x=1$  

•  $\frac{3}{2}$  

•  $3\frac{1}{2}$  

•  $\frac{5}{2}$  

•  $5\frac{1}{2}$  

 $3x\left(5x-2\right)\$  Simplify the following algebraic expression:

•  $8x-5$  

•  $8x^2-6x$  

•  $15x-6$  

•  $15x^2-6x$  

Expand & simplify the following algebraic expression:  $\left(k^4+2\right)\left(k^4-2\right)$  

•  $k^4+2k^4-2$  

•  $k^8+4$  

•  $k^8-2$  

•  $k^8-4$