MATHEMATICS HIGH SCHOOL

Rachel is using grouping to find the factors of a quadratic expression. She has reached the step shown below. Determine the factored form and the standard form of the quadratic polynomial. Factored form: (3x - 4)(x + 2) Standard form: 3x2 + 2x - 8 Factored form: (3x + 2)(x + 4) Standard form: 3x2 + 2x + 8 Factored form: (3x - 2)(x - 4) Standard form: 3x2 - 2x - 8 Factored form: (3x + 4)(x - 2) Standard form: 3x2 - 2x + 8 Reset Submit Rewriting Expressions: P Unanswered

Answers

Answer 1
Answer:

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

If the factored form is given by

(3x-4)(x+2)

Then its standard form will be given by

(3x-4)(x+2)\n\n=3x^2+6x-4x+8\n\n=3x^2+2x+8

if factored form is given by

(3x+2)(x+4)

Then its standard form will be given by

(3x+2)(x+4)\n\n=3x^2+12x+2x+8\n\n=3x^2+14x+8

Hence, only first option is correct.
Answer 2
Answer:

Answer:

Factored form: (3x-4)(x+2)

Standard form: 3x^2+2x-8

Step-by-step explanation:

3x(x+2)-4(x+2)=(3x-4)(x+2)

3x(x+2)-4(x+2)=(3x^2+6x)-(4x+8)

=3x^2+6x-4x-8

=3x^2+2x-8

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Solve for x 64^x-2=256^2x

Answers

64^(x-2)=256^(2x)\n \n(4^3)^(x-2)=(4^4)^(2x)\n \n4^(3x-6)=4^(8x)\ \ \ \ \Leftrightarrow\ \ \ \ 3x-6=8x\n\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3x-8x=6\n\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -5x=6\ \ \ \ \Leftrightarrow\ \ \ \ x=- (6)/(5)

Evaluate f(x) = X(With an exponent of 2) -3x +2, given f(x + 1).

Answers

Answer:

f(x + 1) = x² - x

Step-by-step explanation:

f(x) = x² - 3x + 2 when f(x + 1)

f(x + 1) = (x + 1)² - 3(x + 1) + 2

f(x + 1) = (x² + 2x + 1) + (-3x - 3) + 2

f(x + 1) = x² - x + 0

f(x + 1) = x² - x

Best of Luck!

Factor completely 3x − 12.3(x − 4)

3(x + 4)

3x(−12)

Prime

Answers

3x - 12
3(3x/3 - 12/3)
3(x - 4)

The answer is: 3(x - 4).
3(x-4) since 3 times x is 3x and 3 times -4 equals -12

a jar contains half dollars and quarters. there are 30 coins in all in the jar. the total value of the coins is $8.75. how many quarters are in the jar?

Answers

25 quarters because if you set up a system of equations you get x+y=30 since there are x number of half dollars and y number of quarters plus each other is 30. Next equation is .5x+.25y=8.75 half dollar is 50cents while a quarter equals 25 cents and together they have to equal 8.75. Now you eliminate one variable then you add the remaining variable and the amounts together then you divide if you eliminated the x variable your answer is the one you get after you divide. If you eliminate the y variable then you have to plug it then you get your answer. hope this helped
   

This question i need helo solve it

Answers

390

85(4)=50=390

....................
It will be 390 because if you multiply the 85x4=340 and if you add the 340+50=390

52 minutes and 30 seconds + 27 minutes and 49 minutes + 4 hours and 13 minutes and 53 seconds + 4 hours and 44 minutes and 12 seconds equals

Answers

60seconds=1 minute
60 mins=1hour

add them
add seconds to seconds,  minutes to minute, hous to hours,
first do seconds

sec
30+53+12=95=60+35=1 minute and 35 seconds
add this 1 minute to the minutes

min
1+52+27+49+13+44=186=60+60+60+6=1 hour+ 1 hour+1 hour+6 mins=3 hours+6 mins
add 3 to the hours

hours
3+4+4=11


11 hour
6 mins
35 seconds

sam as other prlbme excep with 12 seconds, 44 mins, and 4 hours more
Hey There!

Try converting all of them to minutes.
1hr=60min
1min=60 sec
 
Total Minutes=665

Hours and minutes-11 hours and 5 minutes

Now add the seconds 65secs- 1min 5 secs

Final answer= 11hours 6 minutes and 5 secs

Have A Brainly Day!
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