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Licemer1 [7]
2 years ago
10

(7k-4)(7k^2+4k-1) mulityply the polynomials

Mathematics
1 answer:
stich3 [128]2 years ago
6 0

Answer:

  49k^3 -23k -4

Step-by-step explanation:

The distributive property is your friend.

  (7k-4)(7k^2+4k-1)=7k(7k^2+4k-1)-4(7k^2+4k-1)\\\\=49k^3+28k^2-7k-28k^2-16k+4\\\\=49k^3+k^2(28-28)+k(-7-16)-4\\\\=\boxed{49k^3-23k-4}

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How high is the stack of the two books? novel and 3/4 inches and dicitonary 41/2
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5 0
3 years ago
3.18x+2.6+0.9x+x=28<br> Solve please, brainliest will be awarded
Elis [28]

Answer:

x=5

Step-by-step explanation

3.18x+2.6+0.9x+x=28

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8 0
3 years ago
Read 2 more answers
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vredina [299]

Answer:

x = 27

Step-by-step explanation:

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7 0
3 years ago
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juin [17]

Answer:

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Step-by-step explanation:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2"   was replaced by   "x^2".  1 more similar replacement(s).

STEP

1

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Equation at the end of step 1

 ((6x +  3x2) -  x) -  x2

STEP

2

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STEP

3

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Pulling out like terms

3.1     Pull out like factors :

  2x2 + 5x  =   x • (2x + 5)

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weqwewe [10]
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