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aliya0001 [1]
3 years ago
13

The following factors are not prime: (x2- 7x)(7x+21).What remains to be factored? (can be more than one answer). A) Factor out t

he 7x from the product. B) Factor out an x from the first binomial. C) Factor out a 7 from the second binomial
Mathematics
2 answers:
topjm [15]3 years ago
5 0
C
The first binomial can have an x factored out, resulting in (x-7) and the second binomial can have a 7 factored out, resulting in (x+3)
devlian [24]3 years ago
4 0

B.) Factor out an x from the first binomial

C.) Factor out a 7 from the second binomial


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Which equation has the solutions x = startfraction 5 plus-or-minus 2 startroot 7 endroot over 3 endfraction?
Shtirlitz [24]

The equation that has the solution x = \frac{5 \pm \sqrt{7}}{3} is 3x^2 - 10x + 6 = 0

<h3>How to determine the equation?</h3>

The solution is given as:

x = \frac{5 \pm \sqrt{7}}{3}

The solution to a quadratic equation is

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

By comparing both equations, we have:

-b = 5

b^2 - 4ac = 7

2a = 3

Solve for b in -b = 5

b = -5

Solve for a in 2a = 3

a = 1.5

Substitute values for a and b in b^2 - 4ac = 7

(-5)^2 - 4 * 1.5c = 7

Evaluate

25 - 6c = 7

Subtract 25 from both sides

-6c = -18

Divide by - 6

c = 3

So, we have:

a = 1.5

b =  -5

c = 3

A quadratic equation is represented as:

ax^2 + bx + c = 0

So, we have:

1.5x^2 - 5x +3 = 0

Multiply through by 2

3x^2 - 10x + 6 = 0

Hence, the equation that has the solution x = \frac{5 \pm \sqrt{7}}{3} is 3x^2 - 10x + 6 = 0

Read more about quadratic equation at:

brainly.com/question/1214333

#SPJ1

7 0
1 year ago
Marie mixes 20 liters of 12% acid solution with a 36% acid solution to make a 20% acid solution. How many liters of 36% solution
svet-max [94.6K]
She used 10 liters of the 36% solution.
6 0
3 years ago
solve the word problem. paula has 24 coins in her drawer. seven of the coins are nickels and the rest are pennies. what is the t
Arlecino [84]
52 cents
i hope this helps

8 0
2 years ago
Help!! I don't know what to do with the square root
Karo-lina-s [1.5K]

Answer:

\sqrt{10}

Step-by-step explanation:

g(4) = \sqrt{(4)^2 - (4) - 2}  \\\\g(4) = \sqrt{16 - 4 - 2}  \\\\g(4) = \sqrt{16 - 6} \\\\g(4) = \sqrt{10}

You can't simplify this anymore

Hope this helps! : )

7 0
2 years ago
If a+b-c=d, if a-b+c=e, then a= ?
yaroslaw [1]
A + b = d+c 
<span>a - b = e - c </span>
The b and c cancel out. 
<span>2a = d+e </span>
<span>a = (d+e)/2 </span>

4 0
2 years ago
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