Friday

July 25, 2014

July 25, 2014

Posted by **mysterychicken** on Tuesday, March 30, 2010 at 5:02pm.

13. Use the Distributive Property to simplify 7(6x^2 + 5x + 4)

15. Evaluate 5w^2 if w = .5

19. Write a simplified expression to represent 5 times the sum of x and 3 increased by 10.

Is it 10+5(x+3) ?

Thanks

-MC

- Algebra -
**mysterychicken**, Tuesday, March 30, 2010 at 5:12pmAlso,

15. Evaluate 5w^2 if w = .5

Is the answer 6.25?

-MC

- Algebra -
**Reiny**, Tuesday, March 30, 2010 at 7:48pm13. 7(6x^2 + 5x + 4)

= 42x^2 + 35x + 28

Many mathematicians would consider

7(6x^2 + 5x + 4) to be more "simplified" than the expanded version.

15. 5(.5)^2 = 5(.25) = 1.25

19. yes

- Algebra -
**mysterychicken**, Tuesday, March 30, 2010 at 8:06pmI don't quite understand how you got that for #15..don't you have to take it to the second power?

And-- 7(6x^2 + 5x + 4) to be more "simplified" than the expanded version..what is this for?

Thanks

-MC

- Algebra -
**Reiny**, Tuesday, March 30, 2010 at 8:11pmI did.

5(.5)^2

= 5(.5)(.5)

= 5(.25)

= 1.25

For the other part, I simply commented that the original expression in factored form is considered to be more simplified than the expanded form. In other words, the question is poorly worded.

I should have simply said, "Expand"

- Algebra -
**mysterychicken**, Tuesday, March 30, 2010 at 8:16pmOkay, thanks for your help!

-MC

**Related Questions**

Algebra - Help! 13. Use the Distributive Property to simplify 7(6x^2 + 5x + 4) ...

math - Write an algebraic expression that requires each of the following ...

Distributive property - How would I multiply these expression? 6(h-4) -3(x+8) -...

math - if you simplify the expression 3x+4(x-2)-3x into the expression 3x+ 4x -8...

Algebra - Which property is illustrated by the following statement? (7p)mn = 7p(...

math - A.use the distributive property to write an expression that is equivalent...

algebra - Use the distributive property to simplify the expression. -11(10+6)

Algebra - Need help with these: [Can you show me the work for them please, if ...

Math - (1) Why is x+2 from 2x? (2)Use the distributive property to remove the ...

8th grade Algebra - Use the Distributive property to rewrite the expression and ...