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Black_prince [1.1K]
3 years ago
15

18x^2+21x-9 I need to figure out how to work this problem

Mathematics
2 answers:
shtirl [24]3 years ago
3 0
18x^2+21x-9=3(6x^2)+3(7x)-3(3)\\\\=3(6x^2+7x-3)=3(6x^2+9x-2x-3)\\\\=3[3x(2x)+3x(3)-1(2x)-1(3)]\\\\=3[3x(2x+3)-1(2x+3)]\\\\=\boxed{3(2x+3)(3x-1)}
Goshia [24]3 years ago
3 0
18x^2 + 21x - 9. Factor out a 3. 

<span>3(6x^2 + 7x - 3). Factor the trinomial. </span>

<span>3(3x - 1)(2x + 3). Answer </span>
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Step-by-step explanation:

6 0
3 years ago
What is the value of this expression when c = -4 and d = 10?
lianna [129]

The complete question is

"What is the value of this expression when c= -4 and d= 10?

1/4 (c^3+d²)

A.2

B.9

C.21

D.41"

The value of this expression when c = -4 and d = 10 will be option B 9.

<h3>What is a simplification of an expression?</h3>

Usually, simplification involves proceeding with the pending operations in the expression.

Simplification usually involves making the expression simple and easy to use later.

The given expression is

1/4 (c^3+d^2)\\\\1/4 ((-4)^3+(10)^2)\\\\1/4 ( -64 + 100)\\\\1/4 (36)\\\\9

Hence, the value of this expression when c = -4 and d = 10 will be option B 9.

Learn more about an expression here:

brainly.com/question/1249625

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6 0
2 years ago
Will uses 3 1/4 ounces each of 5 different types to make fruit smoothies. How many ounces did he use
abruzzese [7]
3 1/4 ounces = 3.25 Ounces.

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3 0
3 years ago
Chandra has some one dollar bills and some five-dollar bills in her wallet. She has 11 bills. The value of the bills is $39. Sol
blsea [12.9K]

Answer:

She has 7 $5 dollar bills and 4 $1 dollar bills.

Step-by-step explanation:

& times 5 plus 4.

6 0
3 years ago
How do you solve this? Matt had some candy to give to his four children. He first took two pieces for himself and then evenly di
Rasek [7]

You work it backwards.

-- If there were 4 children and each child got 4 pieces,
then the children got (4 x 4) = 16 pieces altogether.

-- That's what was left after he took 2 pieces for himself. 
So he started with (16 + 2) = <em>18 pieces</em>.

7 0
3 years ago
Read 2 more answers
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