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gtnhenbr [62]
2 years ago
8

Combine like terms. (6x+5) + (8y + 9x)+(-3 - 3y) (6x + 5) + (8y + 9x) +(-3 - 3y) = Q​

Mathematics
1 answer:
kramer2 years ago
4 0

Answer:

(6x + 5) + (8y + 9x) + ( - 3 - 3y)(6x + 5) + (8y + 9x) -( 3 - 3y) \\ =6x + 5 + 8y + 9x  - 18x - 15 - 18xy - 15y + 8y + 9x - 3 - 3y \\ =6x - 2y - 18xy - 13

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What is the completely factored form of f(x) = 6x3 – 13x2 – 4x + 15?
masya89 [10]

We have to determine the complete factored form of the given polynomial

f(x)=6x^3-13x^2-4x+15.

Let x= -1 in the given polynomial.

So, f(-1)= 6(-1)^3-13(-1)^2-4(-1)+15 = -6-13+4+15 = 0

So, by factor theorem

(x+1) is a factor of the given polynomial.

So, dividing the given polynomial by (x+1), we get quotient as 6x^2-19x+15.

So, 6x^3-13x^2-4x+15 = (x+1)6x^2-19x+15.

= (x+1)(6x^2-10x-9x+15)

=(x+1)[ 2x(3x-5)-3(3x-5)]

= (x+1)(2x-3)(3x-5) is the completely factored form of the given polynomial.

Option D is the correct answer.

5 0
3 years ago
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Please help! Thank you so much!
igor_vitrenko [27]

Angle W:

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180 = 147 + W

W = 33 degrees

Using trigonometry functions to find the side lengths. (SOH CAH TOA)

Side XZ:

cos(57) = XZ / 18

XZ = cos(57) x 18

XZ = 9.8 units

Side XW:

sin(57) = XW / 18

XW = sin(57) x 18

XW = 15.1 units

Hope this helps!! :)

4 0
3 years ago
Cody started biking to the park traveling 15 mph, after some time the bike got a flat so Cody walked the rest of the way, travel
vovangra [49]

Answer:

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Step-by-step explanation:


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3 years ago
Add. <br> (−2+6x^3−3x^2)+(4x^3−5+x^2)
Gemiola [76]

Answer:

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Step-by-step explanation:

To subtract polynomials, you want to subtract the biggest exponent from the first polynomial to the second

so 6x^3 + 4x^3 and that would be 10x^3

then -3x^2 + x^2 and the negative is larger so it would be -2x^2

and finally -2 + -5 and that is -7

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2 years ago
I need help someone pleace
Galina-37 [17]

Answer:

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Step-by-step explanation:

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