Algebraic Expressions 3 — Basic Algebra

Questions in this quiz (10)

1. Find the value of: $$2(3x+1)-8$$ when $$x=4$$.

   • $$16$$
   • $$18$$
   • $$20$$
   • $$22$$

2. If $$y=-2$$, what is the value of $$5y^2+3(y-1)?$$

   • $$9$$
   • $$11$$
   • $$13$$
   • $$15$$

3. If $$x=3$$ and $$y=-5$$, what is the value of: $$4x^2+y-2(x+1)?$$

   • $$19$$
   • $$23$$
   • $$25$$
   • $$27$$

4. What is the value of: $$\sqrt{400-9x^2}$$ to the nearest tenth when $$x=4$$?

   • $$16.0$$
   • $$17.4$$
   • $$18.0$$
   • $$19.2$$

5. If $$x=15$$, what is the value of $$5(x+3)-2(x-1)?$$

   • $$55$$
   • $$59$$
   • $$62$$
   • $$67$$

6. Find the value of: $$\frac{x(18+x-y)}{-z}$$ when $$x=-2$$, $$y=5$$, and $$z=-3$$.

   • $$6$$
   • $$7$$
   • $$-\frac{22}{3}$$
   • $$8$$

7. What is the value of $$4y^2+3x^2-5(x-y)$$ when $$x=4$$ and $$y=-1$$?

   • $$27$$
   • $$41$$
   • $$45$$
   • $$49$$

8. Find the value of $$2x^2-\frac{3(x-2y)}{3}$$ when $$x=5$$ and $$y=2$$.

   • $$46$$
   • $$47$$
   • $$48$$
   • $$49$$

9. What is the value of $$(x^2+2)(x^2-x+1)-4$$ when $$x=-2$$?

   • $$22$$
   • $$26$$
   • $$32$$
   • $$38$$

10. Find the value of: $$(x+y)(x-y)(x+2y)$$ when $$x=8$$ and $$y=3$$.

    • $$550$$
    • $$616$$
    • $$693$$
    • $$770$$