MATHEMATICS HIGH SCHOOL

How do you factor this equation? 5x^2-36x-81

Answers

Answer 1

Answer:

ANSWER: THERE ARE TWO SOLUTIONS TO GET THE ANSWER

THE FIRST ONE IS FACTOR BY GROUPING AND THE SECOND SOLUTION IS SOLVING USING THE QUADRATIC FORMULA.

STEP BY STEP SOLUTION:

FACTOR BY GROUPING

(5x +9) (x -9)

WRITE IN STANDARD FORM

5x^2 - 36x -81

SOLVE USING THE QUADRATIC FORMULA

Solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula.

X= 9, -9/5

I HOPE IT HELP YOU :)

Related Questions

Molly is on a game show. To win $1,000,000, she must answer this question: What key features are necessary—and how are the features used—to create the sketch of a polynomial function? What is Molly's winning answer? Explain in complete sentences.
Work out : 3/5 of 7kg please help me
there is a daily fee for renting a moving truck, plus a charge $0.50 per mile driven. it costs $64 to rent the truck on a day when it is driven 48 miles. Which linear equation can be used to model this situation?
To convert from square miles to square feet,what operation will you use
What percent was the server's tip if the customer left $1.75 for a $12.50 meal.

Draw a rough sketch of path one on your graph

Answers

can you comment some details about your problem?

give more detail, like what is path one??

You want to decorate a party hall with a total of least 40 red and yellow baloons. You want a minimum of 25 yellow baloons. Write and graph

Answers

there is 75 balls and thats the answer

40-25=15 red balloons.

20% of what number is 7

Answers

(20/100)(number) = 7;
Then, (1/5)(number) = 7;
number is 5 x 7 = 35.

Answer:

Step-by-step explanation:

7 times 5 is your answer

Algebra II. Radical expressions.: Multiply, and then simplify if possible. Show your work.

Answers

remember distributive property
a(b+c)=ab+ac
a(b-c)=ab-ac

also
law of exponents
$√(mn)$ = $√(n) √(m)$

and
(a-b)(a+b)=a^2-b^2 (for question 14)
and (a+b)^2=a^2+2ab+b^2 (for question 15)

11. $√(2x)(√(6x)-3√(x))$ = $\sqrt{12x^(2)}-3\sqrt{2x^(2)}$ = $2x√(3)-3x√(2)$

12. 108+(28∛21)

13. (-2√6)+(4√10)

14.√(2x-3)-49

15. 2x+(20√x)+50

16. (3∛2)-(6∛4)-16

17. 42x-6

What is the name of a polygon that adds up to 720 degrees

Answers

The formula for the sum of a polygon's angles is:
180(n-2)
n represents the number of sides of the polygon.
Let's solve for n knowing that the total of the sum of the polygon's angles is 720 degrees.

180(n-2)=720
n-2=720/180
n-2=4
n=4+2
n=6
The polygon in question has 6 sides. A polygon with 6 sides is called an hexagon.

It is a hexagon, and there is a formula to help you it is : 180(n-2)or : 180 x n-2Or : n-2 x 180Or : number of sides - 2 timesed by 180

How much would $200 invested at 5% interest compounded monthly be worth after 9 years? Round your answer to the nearest cent.

A. $207.63
B. $310.27
C. $363.82
D. $313.37

Answers

$A = P(1 + (r)/(n))^(nt)$
$A = 200(1 + (0.05)/(12))^((12)(9))$
$A = 200(1 + (1)/(240))^(108)$
$A = 200(1(1)/(240))^(108)$
$A = 200(1.56684664942)$
$A = 313.369329884$
$A = \$313.37$

Other Questions

. Out of 140 students, 50 passed in English and 20 passed in both Nepali and English. The number of students who passed in Nepali is twice the number of students who passed in English. Using a Venn-diagram, find the number of students who passed in Nepali only and who didn't pass in both subjects.

Which of the following represents an equation for the line that is parallel to y=3/2x-7 and qhich passes through the point (6,8)? 1) y-8=-2/3(x+6) 3)y+8=3/2(x-6) 2)y-8=3/2(x+6) 4)y+8=-2/3(x-6)

Simplifiy (5x^2+3x-9)(2x-7)

CD←→ is tangent to circle A at point B.What is the measure of ∠ABD? 45º 60º 90º 180º