All categories

3 years ago

|x2+x-20 22-11x+28 e: x2-x-30 3x-18

Mathematics

1 answer:

elena-s [515]3 years ago

6 0

Answer:

x2 - 10x - 1994

Step-by-step explanation:

Step 1 :

Trying to factor by splitting the middle term

1.1 Factoring x2-10x-1994

The first term is, x2 its coefficient is 1 .

The middle term is, -10x its coefficient is -10 .

The last term, "the constant", is -1994

Step-1 : Multiply the coefficient of the first term by the constant 1 • -1994 = -1994

Step-2 : Find two factors of -1994 whose sum equals the coefficient of the middle term, which is -10 .

-1994 + 1 = -1993

-997 + 2 = -995

-2 + 997 = 995

-1 + 1994 = 1993

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :

x2 - 10x - 1994

Processing ends successfully

plz mark me as brainliest :)

You might be interested in

Divide 36xy-39y over 3y

Tcecarenko [31]

$\dfrac{ 36xy-39y}{3}$

$Factor \ out \ the \ common \ term \ 3y$

$\dfrac{3y(12x-13)}{3}$

$y(12x-13)

 
$ $Cancel \ 3$

3 0

3 years ago

Read 2 more answers

Which gives the equivalent decimal form of the fraction 14/16 ? 4.0073 0.7005 0.875 4.7003

Vaselesa [24]

It is 0.875. because 14 ÷ 16 is 0.875

8 0

3 years ago

How could we find the diameter of a circle with an area of 78.5 in.^ 2 ?? (3.14 is used for )

iris [78.8K]

Answer:

I think it's A AND C. The diameter is just the radius multiplied by 2 at the end of the day.B is just wrong.

8 0

3 years ago

If 1 pound of grapes cost 3.25 and2 pounds cost 6.50 what do 3,4,5,6,7,8,9 pounds cost?

11Alexandr11 [23.1K]

3, would be 9.75
4, would be 13
5, would be 16.25
6, would be 19.50
7, would be 22.75
8, would be 26
9, would be 29.25
OR 3.25x = y (y being 3-9)

4 0

3 years ago

What is the simplified form of 12x/900x²y4z6?

zalisa [80]

Answer:

$360xy^2|xz^3|$

Step-by-step explanation:

Given expression:

$12x \sqrt{900x^2y^4z^6}$

$\textsf{Apply radical rule} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}:$

$\implies 12x \sqrt{900}\sqrt{x^2}\sqrt{y^4}\sqrt{z^6}$

Replace 900 with 30² :

$\implies 12x \sqrt{30^2}\sqrt{x^2}\sqrt{y^4}\sqrt{z^6}$

$\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0:$

$\implies 12x \cdot 30|x|\sqrt{y^4}\sqrt{z^6}$

$\implies 360x|x|\sqrt{y^4}\sqrt{z^6}$

(We need to use the absolute value of √x² since the x term was originally to the power of 2, which means the value of x² is always positive since the exponent is even).

$\textsf{Apply exponent rule} \quad \sqrt{a^m}=a^{\frac{m}{2}}:$

$\implies 360x|x|\cdot y^{\frac{4}{2}}\cdot z^{\frac{6}{2}}$

Simplify:

$\implies 360xy^2|xz^3|$

(We need to use the absolute value of z³ since the z term was original to the power of 6, which means the value of z⁶ is always positive since the exponent is even).

7 0

2 years ago