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svet-max [94.6K]
3 years ago
7

Factor 7x^2-22x+3. I really need help with this. please

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
4 0

Answer:

(7x-1)*(x-3)

7x^2−22x+3

break expression in groups:

(7x^2-x)+(-21x+3)

factor out "x" from (7x^2-x)

x(7x-1)

factor out -3 from (-21x+3)

-3(7x-1)

x(7x-1)-3(7x-1)

factor out the common terms <em>7x-1</em>

(7x-1)(x-3)

Answer:

(7x−1)(x−3)

Hope this helps!

Dmitry [639]3 years ago
4 0
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Juanita has 3 rectangular cards that are 8 inches by 9 inches. How can she arrange the cards, without overlapping, to make one l
ivann1987 [24]

Answer:

Step-by-step explanation:

Given  

  • 3 rectangular cards
  • each card is 8 inches by 9 inches

The way that she can arrange the cards, without overlapping, to make one larger polygon with the smallest possible perimeter is that:

Put 3 cards together according to the length

So  the smallest possible perimeter is:

8 + 8 + 8 + 8 + 8 + 8 + 9 + 9 = 66 inches as you can see in the attached photo.

The area of the polygon is equal to the combined area of the 3 cards without overlapping or extending.

Hope it can find you well.

6 0
3 years ago
Find three consecutive even numbers whose sum is 1674.
Norma-Jean [14]

Answer:

556, 558, and 560

Step-by-step explanation:

1674/3 = 558 (An even number, yay)

So 558 + 558 + 558 = 1674

Subtract two from the first one and add two to the last (still equal)

556 + 558 + 560

adding them equals 1674 so the answer is

556, 558, and 560

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20-%2064%7D%20" id="TexFormula1" title=" \sqrt{ - 64} " alt=" \sqrt{ - 64} " ali
LenKa [72]

Answer:

<h3>8i</h3>

Step-by-step explanation:

4 0
2 years ago
Help pls with math lotsss of points!!!
sveticcg [70]

Answer:

5x^2+22x-12         x cannot be -5, -4, -2

(x+5)(x+4)(x+2)

Step-by-step explanation:

In order to solve this, your denominator must be the same. Let's start by writing out the two different quadratic formulas:

x^2 + 6x + 8 <-- This should factor out to (x+4)(x+2)

x^2 + 7x + 10 <-- This should factor out to (x+5)(x+2)

Now that you have factored out the two quadratics, plug them into the equation.

    5x        -       3

(x+4)(x+2)      (x+5)(x+2)

Now as we know, -2 cannot be x because it will turn the entire equation undefined. Multiple top and bottom with (x+5) on the right side and (x+4) on the left side.

5x (x+5)             -           3(x+4)  

(x+5)(x+4)(x+2)      (x+5)(x+4)(x+2)

Focus on the top. 5x(x+5) will turn out to be 5x^2+25x. 3(x+4) will turn out to be 3x+12. Combine the two equations because now they are equal to each other and do the subtraction:

5x^2+25x - (3x+12)     =    5x^2+22x-12         x cannot be -5, -4, -2

 (x+5)(x+4)(x+2)               (x+5)(x+4)(x+2)

4 0
2 years ago
Please do not send me p d f s or links
Sedbober [7]

Answer:I know you said no PDFs but I know this site that can help you. Just search up ‘Desciptive Statistics Calculator’ it can help you a lot

Step-by-step explanation:

7 0
3 years ago
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