dicewillis
14.09.2020 •
Mathematics
What is the product of 4n^+3=7n?
Solved
Show answers
More tips
Answers on questions: Mathematics
- M Mathematics Plz help need answer for test...
- M Mathematics 2. A total of 525 records of a hospital were reviewed and 175 of the patients had a heart problem, 150 a respiratory problem, 125 some type of trauma and 75 had other...
- M Mathematics If cos 0 = 3/radical 22 and angle 0 is in Quadrant I, what is the exact value of tan 20 in simplest radical form?...
- M Mathematics Solve the equation for x. X2 + 10x + 16 = 0 O A. -8,-2 OB. 8,2 OC.-4 OD. 4...
- M Mathematics A triangular piece of glass has sides that measure 54 in., 55 in., and 75 in. Is the piece of glass in the shape of a right triangle? Select your answer and complete...
- M Mathematics Peter can buy 5 juice bottles for $10 or 6 juice bottles for $12. How much do you think he A) $13.00 B) $13.50 C) $14.00 D) $15.00...
- M Mathematics What are the vertices for the final image after applying the composition T−2,4 ◦ RO,180° to ΔXYZ? X is . Y is . Z is ....
- M Mathematics What is the inequality for more than 100,000...
- M Mathematics 2x - 15 = x + 5Plz I need it now ...
- M Mathematics The perimeter ratio of two similar triangular prisms are 13:7. If the surface area of the smaller prism is 52km2 , then calculate the larger surface area....
Ответ:
4n^2+3=7n
make into trinomial
subtract 7n from both sides
4n^2-7n+3=0
if we can factor this, then we can asume that the factors are equal to zero becase if
xy=0 then assume x and/or y=0 so
to factor an equation in ax^2+bx+c where a is greater than 1 then
b=t+z
a times c=t times z
to factor 4n^2-7n+3 you do
4 times 3=12
what 2 numbers multiply to get 12 and add to get -7
the numbers are -3 and -4 so
split up the -7
4n^2-4n-3n+3
group
(4n^2-4n)+(-3n+3)
undistribute
(4n)(n-1)+(-3)(n-1)
reverse distributive property
ab+ac=a(b+c)
(4n-3)(n-1)=0
set each to zero
4n-3=0
add 3 to both sides
4n=3
divide both sides by 4
n=3/4
n-1=0
add 1 to both sides
n=1
n=3/4 or 1
Ответ:
x=24?
Step-by-step explanation:
I'm rly not sure but my working is attached