Wednesday

October 1, 2014

October 1, 2014

Posted by **Laruen** on Monday, October 29, 2012 at 2:31pm.

21. 4x + 2y, Answer: 2

22. 3(x) *to the 3rd power*, Answer: -221

23. (x + y) *to the 2nd power*, Answer: 9

24. -4x + 2y, Answer: 18

Please check to see if my answers are correct. Thank You!!! :)

- Math 8R: Homework Check - Part 3 -
**Steve**, Monday, October 29, 2012 at 2:51pm#21. ok

#22.

3x^3 = 3(-2)^3 = 3(-8) = -24

(3x)^3 = (-6)^3 = -216

Not sure how you came up with -221, since 221 is neither a perfect cube, nor a multiple of 3.

#23. ok

#24. ok

**Answer this Question**

**Related Questions**

Math/Standard and scientific notation - Express each measure in standard form. (...

Math 8R: Homework Check - Part 2 - Part 2: Simplify by combining like terms and...

Math 8R - Homework Help!: Part 1 - Part 1: Fill in the definitions I need the ...

MATH 115 - I have math questions I need to check my answers can you please help ...

CHRIST MATH - Divide 20 into 4 parts which are in AP such that ratio between the...

MATH - I have math questions I need to check my answers can you please help me 1...

Math 8R: Homework Check - Part 4 - Part 4: Translate and solve: 25. 6 less than ...

Check Please(Math) - (-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Please check ...

physics - Part 1 A 1260 kg car accelerates uniformly from rest to 4.65 m/s in 2....

FACS - Reading Assignment Help! - 7. Explain - Why is it important to evaluate ...