Math 017 Materials With Exercises

Exercises with Answers (For answers see Appendix A)Ex. 1 Write a word to complete each sentence.In the expression 4x 2 2 2y, 4x and 2 y are called ________________ .In the expression4x 2 2y,24x and2 y are called ________________ .Ex.2List all terms of the following expressions.a) 3 xb) ab cdxyc) 2y 2 2 x1d) ( 2 b) z2yEx.3 Is 2+8 equal to 8+2? Is x 8 equal to 8 x ? How about2 cd cd 2a andba2 2 b? Why?Ex.4 a) Evaluate m n and n m when m 2 and n 3. Based on this evaluation, can youdetermine if the two expressions are equivalent?b) Is it true that m n n m?Ex.5 For each of the following expressions- List all its terms- Using the fact that changing the order of terms results in an equivalent expression, rewrite thefollowing expressions in their equivalent form by rearranging the terms. Use the equal sign to indicatethat the resulting expressions are equivalent (for example, the expression A 9 should be rewritten asA 9 9 A).a) 2 m zb) x 2c) 3c 2d)e)c( d y2 f ) f)32 y 2x 22 s 2 ( x y)3Ex.6Fill in the blanks to make a true statement.a) x mn 2 mn 2__________b) 3(2a 3b) 4x 4x__________Ex.7 List all terms, and then, by changing the order of these terms, create two new equivalentexpressions for each of the following .232 3xa) x x xb) a 2bc2Ex.8 For each of the following expressions (1)-(5) find an expression equivalent to it amongexpression (A)-(E). Rewrite each matched pair with the equal sign between them to indicate theirequivalence. (1) s t u(A) t u s(2) t s u(B) s t u(3) u s t(C) t s u(4) u t s(D) s u t(5) s t u(E) s u t32