Posted by **erin** on Wednesday, July 25, 2007 at 10:28pm.

(a-y)+2y3,if a= 2 and y= -3

(2--3)2 + 2(-3)3

(5)2 + (-6)3

25 + -216

-191 either im wrong somewhere or my book doesnt have that answer my choices are -29,43,79,-53

I am assuming that by 2(-3)3 you mean

2(-3)

^{3}
you did not follow the order of operation which says exponents before multiplying

that part should then be

2(-27)

so your last line is

25 + (-54)

= -29

## Answer this Question

## Related Questions

- college math - In regards to my question radius 2.6 yd length 8.4, 3.14 I used ...
- Biology!!! - The female mosquito is an effective vector for malaria. What makes ...
- algebra - Evaluate (a-y)2(squared) +2y3(cubed), if a =2 and y=-3 A. -29 B. 43 C...
- math - i have another question as well.. square root of 3x=x-6..thanks i got an ...
- Algebra II - A math book said that the answer to (1 + 1/n) to the nth power was ...
- algebra - 1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3...
- Math help please *calculus* - ok im having a bit of a problem rationalizing ...
- Algebra - I am solving sytems of equations algrbraically. I have tried several ...
- mat115 - Need assistance with this problem. I have computed the problem but my ...
- algebra - Solve for s in this equation. Depreciation. D=C-s/n This is my answer ...

More Related Questions