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Jobisdone [24]
3 years ago
8

3x^2(x^3-1)+2x^3(2x^2+2) Whats the simplified answer?

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0

Answer:

\large\boxed{7x^5+4x^3-3x^2}

Step-by-step explanation:

3x^2(x^3-1)+2x^3(2x^2+2)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(3x^2)(x^3)+(3x^2)(-1)+(2x^3)(2x^2)+(2x^3)(2)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=3x^{2+3}-3x^2+4x^{3+2}+4x^3\\\\=3x^5-3x^2+4x^5+4x^3\qquad\text{combine like terms}\\\\=(3x^5+4x^5)-3x^2+4x^3\\\\=7x^5+4x^3-3x^2

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What are three expressions equivalent to : 2g+10h?. <br> PLEASE!!!!!
stellarik [79]

Answer:

2(1g + 5h)

(2 x g) + (2 x 5h)

4g + 10h

_______

     2

I don't know the options so I just did 3 possible ways it could be equal

8 0
3 years ago
PLEASE HELP, ITS URGENT!​
Len [333]

Answer:

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8 0
2 years ago
What percent of 146 is 39​
marissa [1.9K]

Answer:

<em>39 is 26.71% of 146</em>

Step-by-step explanation:

Percentage solution with steps:

Step 1: We make the assumption that 146 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

Step 3: From step 1, it follows that 100% = 146.

Step 4: In the same vein, x% = 39.

Step 5: This gives us a pair of simple equations:

100% = 146(1).

x%=39(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS (left hand side) of both equations have the same unit (%); we have

100/x% = 146/39

Step 7: Taking the inverse (or reciprocal) of both sides yields

x% / 100% = 39/146    ⇒ x= 26.71%

Therefore, 39 is 26.71% of 146.

<em>hope it helps:)</em>

7 0
3 years ago
The length of a rectangle is twice the width. Find the width if the perimeter is 60 centimeters. Define a variable, write an equ
-Dominant- [34]

width = w

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perimeter = 2w + 2 l

perimeter = 2w +2(2w)

60 = 2w + 4w

60= 6w

60=6w

w = 60/6 = 10

length = 10x2 = 20

10+10+20+20 = 60

3 0
3 years ago
Read 2 more answers
What is the value of x?
Helen [10]
if the original value of x was negative then X the opposite sign version of X would have to be positive Princeton's if I start with x equals -3 then x equals -3 equals + 3 which is positive
8 0
2 years ago
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