Factor the polynomial below 20x^2-45

Answers

Answer 1

Answer: $20x^2-45=5(4x^2-9)=5[(2x)^2-3^2]=5(2x-3)(2x+3)\n\n--------------------------\n\nuse:a^2-b^2=(a-b)(a+b)$

Answer 2

Answer: $(a+b)(a-b)=a^2-b^2\n---------------------\n\n20x^2-45=5\cdot4x^2-5\cdot9=5\cdot(4x^2-9)=\n\n.\ \ \ \ \ \ \ \ \ \ \ \ =5\cdot[(2x)^2-3^2]=5\cdot(2x+3)(2x-3)$

Related Questions

One sixth of thirty-six hundredths is less than two-tenths less than four
Evaluate: x = y² if x = 8 and y = 3A. 2B. 509C. 25D. -1
josh watches 720 televisions shows in one year. if he watches the same number of shows each month, how many shows does he watch in 5 months. is that a division problem or multiplication problem.
A circle has a diameter of 8 m. What is the circumference of the circle? (Express your answer using π.) A. B. C. D.
Maria has 14 pencils, Ted has 9 pencils, Tom has 12 pencils, Lucinda has 13 pencils, and Jumana has 12 pencils. How can they redistribute the pencils so that they all have the same amount? How many pencils should each person have?

A Pair of basketball shoes was originally priced at $80 but was Marked 37.5% what was the retail price of the shoe

Answers

The retail price of the basketball shoe is $110 because 37.5% of $80 is $30. So, you add $80 to $30 and you get $110.

Name any outliers in the data 277,448,279,334,132,599,237,251,183, and 191

Answers

448, 599, and 183....

5/6h - 7/12 = -3/4h - 13/6

Answers

$(5)/(6) h$ - $(7)/(12)$ = $-(3)/(4) h$ - $(13)/(6)$

First, simplify $(5)/(6) h$ to $(5h)/(6)$ / Your problem should look like: $(5h)/(6)$ - $(7)/(12)$ = $-(3)/(4) h$ - $(13)/(6)$
Second, simplify $(3)/(4) h$ to $(3h)/(4)$ / Your problem should look like: $(5h)/(6)$ - $(7)/(12)$ = $- (3h)/(4)$ - $(13)/(6)$
Third, multiply both sides by 12, which is the LCM of 6 and 4. / Your problem should look like: 10h - 7 = -9h - 26
Fourth, add 9h to both sides. / Your problem should look like: 10h - 7 + 9h = -26
Fifth, simplify 10h - 7 + 9h to 19h - 7 / Your problem should look like: 19h - 7 = -26
Sixth, add 7 to both sides. / Your problem should look like: 19h = -26 + 7
Seventh, simplify -26 + 7 to -19. / Your problem should look like: 19h = -19
Eighth, divide both sides by 19. / Your problem should look like: h = $- (19)/(19)$
Ninth, cancel out 19. / Your problem should look like: h = -1

Answer: h = -1

Answer:

h = -1

Step-by-step explanation:

A piece of wood is to be cut so that it is square and has an area of 45 square inches. How long should the sides be, rounded to the nearest tenth of an inch?a.
6.7 inches
c.
8.6 inches
b.
22.5 inches
d.
11.3 inches

Answers

A 6.7 u take the square root of 45

What is the chemical basis of a gene?
A.carbohydrate
B.Protein
C.DNA
D.lipid

Answers

Answer:

Step-by-step explanation:

a gene is what is in you so it starts with DNA

The answer to ur question is C

A cookie is chosen from a jar containing 4 choc chip, 3 pb, 2 oatmeal. What is the probability that you will choose a choc chip. Express your answer as a fraction in lowest form.

Answers

$|\Omega|=9\n |A|=4\n P(A)=(|A|)/(|\Omega|)=(4)/(9)$

Other Questions

A pet store sold 63 Siamese cats. If the ratio of Siamese cats to house cats sold 7:5, what is the combined amount of cats sold?

Shawn has $3 more than twice as much money as Peter.If Shawn has $10, how muchmoney does Peter have.

Write a story to represent the division problem. 6 divided by 1/3

Every time Jason buys 2 red marbles he buys 1 blue marble. If y = the number of red marbles Jason buys, and x = the number of blue marbles Jason buys, which graph represents this direct variation? A) B) C) D)