Algebra
posted by mysterychicken .
Help!!
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

Also,
15. Evaluate 5w^2 if w = .5
Is the answer 6.25?
MC 
13. 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 
I 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 
I 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" 
Okay, thanks for your help!
MC
Respond to this Question
Similar Questions

Distributive property
How would I multiply these expression? 6(h4) 3(x+8) 10(a+5) PLease and thankYou Multiply the coefficient (outside the parentheses) by each term inside the parentheses. For example, 6(h4) = 6h  24 You do the others do you have 
Algebra
Need help with these: [Can you show me the work for them please, if needed? 
Algebra
Help! 13. Use the Distributive Property to simplify 7(6x^2 + 5x + 4) 15. Evaluate 5w^2 if w = .5 Is it 6.25? 
math
if you simplify the expression 3x+4(x2)3x into the expression 3x+ 4x 83x, what property did you use associative property commutative property distributive property identity property 
math
A.use the distributive property to write an expression that is equivalent 3(x +  8) if the coefficient of the variable is increased by 10, what would the new expression be after you apply the distributive property? 
math
Write an algebraic expression that requires each of the following properties of real numbers to simplify, in the order given: the Distributive Property, the Associative Property of Addition, the Commutative Property of Addition, and … 
Algebra
Which property is illustrated by the following statement? 
Math. idk?
6. Name the like terms in the following expression. 5m + 4 + 3m + 6p 7. Write an equation for the following: Twelve times h equals one hundred twenty minus thirtysix.State whether the equation is true, false, or an open sentence. … 
Algebra
1. Use the Distributive Property to simplify the expression. (1)(4c) 2. Use the Distributive Property to simplify the expression. 4(2x 4) 3. Use the Distributive Property to simplify the expression. (10 + 4 y) 1/2 4. To which subsets … 
Algebra
1. Use the Distributive Property to simplify the expression. (1) (4c) 2. Use the Distributive Property to simplify the expression. 4 (2 x  4) 3. Use the Distributive Property to simplify the expression (10+4y) 1/2 4. To which subsets …