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

Tutors Answer Your Questions about expressions (FREE)

Question 168992: factor b^2-4b-5
Click here to see answer by checkley77(12569)

Question 168990: factor 16x^2-25y^2
Click here to see answer by checkley77(12569)

Question 168995: factor a^2-b^2+8a-8b
Click here to see answer by checkley77(12569)

Question 168994: factor 15x^3-32x^2+16x
Click here to see answer by checkley77(12569)

Question 168983: factor out the negative of the greatest common factor: -9b+63
Click here to see answer by Alan3354(30975)

Question 168999: factor -9b+63
Click here to see answer by Electrified_Levi(103)

Question 169000: factor 4a^4b^8c^6-49d^8
Click here to see answer by Earlsdon(6287)

Question 168998: factor 15x^3-32x^2+16x
Click here to see answer by scott8148(6628)

Question 168997: factor -4a^2-ab+5b^2
Click here to see answer by scott8148(6628)

Question 169024: factor by grouping
5x^2+5xy+19x+19y
Click here to see answer by checkley77(12569)

Question 169024: factor by grouping
5x^2+5xy+19x+19y
Click here to see answer by nerdybill(6948)

Question 169029: factor
13(x+y)-11t(x+y)
Click here to see answer by nerdybill(6948)

Question 169026: b^2+3b+18
is this prime yes or no?
Click here to see answer by jim_thompson5910(28493)

Question 168977: Which of these trinomials are written in form with descending powers of the variable?
9t^2-2+3T
7-4T^2+6T
3T+3-8T^2
3+4T-5T^2
6T^2+3T-4

Click here to see answer by Alan3354(30975)

Question 169294: If a=2, b=-3 and c=4 than evaluate 5ac-2b^2/2ab
Click here to see answer by Mathtut(3670)

Question 169417: solve the equation 2x^2-3x+1=0
and present solutions in solutions set notation
Click here to see answer by checkley77(12569)

Question 169459: simplify the expressions:
the square root of 50
Click here to see answer by Mathtut(3670)

Question 169463: 6(3x-5)-7x=25
Click here to see answer by jojo14344(1512)

Question 169789: f(x)=4/2x-1, find f(-1)
A. 4/3
B. 2
C. -2
D. -4/3
Click here to see answer by jim_thompson5910(28493)

Question 169912: Could someone maybe tell me what I did wrong by these two problems;
(3a^2b)(-2ab^3)= 6a^3b4 (why is my answer wrong?)
or why is my answer wrong here; ab^2= 3(4)^2 = 3(4*4)=48
It would be more than great if someone could help me out here =)
Click here to see answer by stanbon(57228)

Question 169936: 3x^2-2x+1=0
solve the equation and present in solution set notation
Click here to see answer by nerdybill(6948)

Question 169923: 3*√14*√2(√3+3)
mulitply and simplify
Click here to see answer by jim_thompson5910(28493)

Question 169494: middle school algebra- what is the definition for natural domain as it relates to formulas and functions. thanx.....
Click here to see answer by midwood_trail(310)

Question 170083: 11. Evaluate 2 * (5 - 3)^3 + 8 ÷ 2 + (9 - 4)^2
Click here to see answer by stanbon(57228)

Question 170085: 1. Write 1024 in exponential notation
Click here to see answer by stanbon(57228)

Question 170084: 12. Evaluate {3(7 - 9) + 16}3 ÷ (-5) - 24
Click here to see answer by stanbon(57228)

Question 170082: (1/3)^2 + 1/4 - (4/3)^2 * (1/2)^3
Click here to see answer by stanbon(57228)

Question 171273: Can you please help me evaluate the expression to this problem 3*4 to the second power-21?
Click here to see answer by Alan3354(30975)

Question 171328: how can u factor the variable expression completely I NEED HELP????????????????
Click here to see answer by solver91311(16868)

Question 171401: Please help solve this: -(11-2x)=5(x+8)
Click here to see answer by scott8148(6628)

Question 171401: Please help solve this: -(11-2x)=5(x+8)
Click here to see answer by Alan3354(30975)

Question 171374: Need help evaluating each expression for a= -4 and b= 5

1. (3a)^2
answer= 24?
7. -ab^2(a-ab)

10. -b -a^2- 8
15. -(ab)3
answer=60?
Thank you for any help given! :)
Click here to see answer by Alan3354(30975)

Question 171604: writing algebraic expressions

1.Two-thirds the time required to bake a turkey
?is the answer b2/3 b=time required to bake a turkey

3.The amount of money in your wallet doubled
? is the answer- mx2 m=amount of money

7.The combined weight of me, my car, and a 10-pound brick

?is the answer-m+c+10lb m=weight of me and c=weight of car

8.The value of a winning lottery ticket shared equally by three people

?is the answer- t/3 ? t=ticket

Click here to see answer by nerdybill(6948)

Question 171638: the height h (in feet)of an object that is dropped from the height of s feet is given by the formula h=s-16t^2, where t is the time the object is falling. a five foot tall woman on a sidewalk looks driectly overhead and sees a window washer drop a bottle from the 3rd story.how long does she have to get out of the way? round to the nearest tenth. (a story is 12 feet)..help!!!!!!!!!!!!!!!
Click here to see answer by Earlsdon(6287)

Question 171825: How do I simplify and evaluate the following (x2y-4z0/3x6y-3)4
Click here to see answer by jim_thompson5910(28493)

Question 172046: Evaluate 3x -7y when x =-2and y=-3
Click here to see answer by solver91311(16868)

Question 172353: -2xyz+z
for x= -3, y= -2, and z=5
so -2*-3*-2*5
ao -2*-3=6*-2=-12*5= 60
is correct 60?

6. -y(3h+p) for y= -8, h=5, and p= -2
so - -8(3*5+ -2)=- -8* 15+ -2
is the answer 118?
so confused, help please!
Click here to see answer by Mathtut(3670)

Question 172392: 26 more than the product of a number and 17 is -42
Click here to see answer by user_dude2008(1861)

Question 172433: the difference of 2 times a number and 6
Click here to see answer by jim_thompson5910(28493)

Question 172434: 125 decreased by a number
48 more than the quotient of a number and 64
the quotient of p and 4 decreased by 320
Click here to see answer by jim_thompson5910(28493)

Question 172391: eight times a number plus 6 less than twice the number is 34
Click here to see answer by praseenakos@yahoo.com(507)

Question 172447: the quotient of 45 and the sum of c and 17
Click here to see answer by jim_thompson5910(28493)

Question 172555: 3y-5=7y-2
Click here to see answer by Mathtut(3670)

Question 172955: How to solve for x?
10.2=12*x+7*(1-x)
Click here to see answer by colliefan(239)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320