# Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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 Algebra: Evaluation of expressions, parentheses Solvers Lessons Answers archive Quiz In Depth

 Question 152073: -20-3x+3x^2=0 I can't seem to find the right way to factor it! Click here to see answer by Earlsdon(6287)

 Question 152230: PLEAS HELP TO ADD GROUPING SYMBOLS TO THIS EXPRESSION TO COME OUT TO 279,936-THANKS 2*3^3+4 Click here to see answer by nerdybill(6951)

 Question 152619: 1 The sum of two numbers is 12. One number is 5 times the other. Can you write the algebraic expressions for these two equations? Can you tell me what the two numbers are? I know it is 10 and 2 but need all algebraic expressions 2. We know that if you multiply two negative numbers together you always get a positive number. We know that if you perform an arithmetic operation on rational numbers you always get a rational number as the answer. Are there any such rules for irrational numbers? Give examples. Click here to see answer by Fombitz(13828)

 Question 152740: hi.. I'm homeschooled and I ran acrossed a question today that Im' really having a problem with. the equation is this. 1/3 (1/2 x 3 1/3)- 5/6 thanks for your time. Click here to see answer by nerdybill(6951)

 Question 153179: I would want to know step by step of how to simplfy ecuation and to reduce the expresion? 1 4(2x-1)-6(x+3) 2 6a-2a+5=17 3 4(8-3w)=32-8(w+2) Click here to see answer by oscargut(891)
 Question 153179: I would want to know step by step of how to simplfy ecuation and to reduce the expresion? 1 4(2x-1)-6(x+3) 2 6a-2a+5=17 3 4(8-3w)=32-8(w+2) Click here to see answer by checkley77(12569)
 Question 153179: I would want to know step by step of how to simplfy ecuation and to reduce the expresion? 1 4(2x-1)-6(x+3) 2 6a-2a+5=17 3 4(8-3w)=32-8(w+2) Click here to see answer by stanbon(57282)
 Question 153179: I would want to know step by step of how to simplfy ecuation and to reduce the expresion? 1 4(2x-1)-6(x+3) 2 6a-2a+5=17 3 4(8-3w)=32-8(w+2) Click here to see answer by Earlsdon(6287)

 Question 152779: A rectangular shape has a length-to-width ratio of approximately 5 to 3. A designer can use the expression 1/3(5w)to find th length of such a rectangle with a given width w. Find the length of such a rectangle with width 6 inches. Click here to see answer by mangopeeler07(462)

 Question 153640: worksheet problem -- not in book -- could not find edition no., but the year is 1995 what order do I solve this equation {8[12(10 +6) - 88 ] + 168} /125 Click here to see answer by stanbon(57282)

 Question 153643: here is another problem from a worksheet order of operations is confusing. 5{[15(8^2 - 24)/12]} - 6^3 Click here to see answer by Edwin McCravy(8893)

 Question 153644: worksheet problem 15+{5+[(12 * 4) + (16 * 3)]-3} 15+{5+[(48)+(48)]-3} 15+{5+[96]-3} 15+{98} 113 Click here to see answer by Fombitz(13828)

 Question 153920: evaluate -2a+6b when a = 6 and b =-3 Click here to see answer by checkley77(12569)
 Question 153920: evaluate -2a+6b when a = 6 and b =-3 Click here to see answer by Edwin McCravy(8893)

 Question 154032: five times the sum of c and 18 Click here to see answer by checkley77(12569)

 Question 154146: -(3-10)-(6-3) My answer is not coming out correctly. Please see my version- -(3+(-10))-3= -(-7)-3= -(-7)+(-3)= -13 The textbook gives the answer as 4. Where am I going wrong? Thank you. Click here to see answer by ptaylor(2048)

 Question 154150: 21-[-(3-4)-2]-5 21-[-3+(-4)-2]-5 21-[-7)-2]-5 21-[-7+(-2)-5 21-(-9)-5 21+9-5 30-5 25 Textbook gives this answer as 17 What am I doing wrong? Thank you. Click here to see answer by stanbon(57282)

 Question 154277: me and my aunt keep getting different answers. this is weekend homework. Multiply or divide. Simplify. 1) ((x^2-9)/(x^2-4x))*((2x-8)/(x+3)) 2) (m^2+10m+25m)/(m^2+12m+35) 3) ((y^2+4y+4)/(y^2+3y+2))/((y^2+6y+8)/(y^2+4y+3)) Click here to see answer by jim_thompson5910(28536)

 Question 154306: (x2 - 3X +2) - (3X2 - 5X -1) = Click here to see answer by checkley77(12569)

 Question 154714: the number of meters in c centimeters write an expression for the situation Click here to see answer by stanbon(57282)

 Question 154716: write this math problem out What is a number greater than 6 Click here to see answer by Alan3354(30993)

 Question 154744: when you have parentheses and an exponent, does the exponent go inside or outside? Click here to see answer by stanbon(57282)

 Question 154669: Please Help! A plumber charges a fee of \$75 per service call plus \$15 per hour.If h is the number of hours the plumber works, then write the expression to the total charges(c). Click here to see answer by jojo14344(1512)