3 years ago

What must be added to 3x -7 to make x 2 + 4x -1?

Mathematics

1 answer:

Elanso [62]3 years ago

6 0

There is the answer!

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Simplify completely the quantity 4 times x to the third power plus 5 times x to the 2nd power plus 3 times x all over x. (2 poin

ikadub [295]

Answer: 4x² + 5x + 3

<u>Step-by-step explanation:</u>

$\dfrac{4x^3+5x^2+3x}{x}\\\\\\=\dfrac{x(4x^2+5x+3)}{x}\qquad \text{factored out the common term from the numerator}\\\\\\=4x^2+5x+3\qquad \text{canceled out x from numerator and denominator}$

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3 years ago

The perimeter of a rectangle is 84 Centimeters. the length is twice the width. find the length and width

KatRina [158]

Length= 28
Width= 14

Work:

2(2x)+2(x)=84
4x+2x=84
6x=84
x=14

14x2=28 (length)

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3 years ago

Suppose you bought supplies. Three rolls of streamers and 15 party hats cost $30. Later, you bought 2 rolls of streamers ad 4 pa

Zolol [24]

Since 30÷15 is 2 you now know each party hat is 2 dollars. Now we know that and we can easily find out how much a roll of streamer is. 11-(4x2)=3. 3÷2=1.5. One roll of streamer is $1.50 and one party hat is $2. I'm pretty sure I did this right lol I hope it helps

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3 years ago

Find the slope of the line that passes through the pair of points. (-6,-1), (0,-9)

klio [65]

Answer: -4/3

Step-by-step explanation:

$\frac{-9-(-1)}{0-(-6)} \\\frac{-8}{6} = -8/6\\-8/6=-4/3$