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3 years ago

Find the LCM of the polynomials. x² - x - 42 x2 + x - 56

Mathematics

1 answer:

den301095 [7]3 years ago

7 0

Answer:

x^3+7x^2-50x-336 or (x-7)(x+6)(x+8)

Step-by-step explanation:

Factor each equation.

x^2-x-42= (x-7)(x+6)

x^2+x-56= (x-7)(x+8)

The common factor is (x-7), therefore the other factors of the expressions must multiply to find the common factor.

(x-7)(x+6)(x+8)=x^3+7x^2-50x-336.

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Solve: StartFraction 10 Over x EndFraction = 2 a. x = 5 c. x = 20 b. x = 10 d. x = 15 Please select the best answer from the cho

choli [55]

Answer:

a. x=5

Step-by-step explanation:

The Fraction is

10/x=2

The unknown from the fraction is x

We need to find the value of the unknown

10/x=2

Cross product

We have,

10=2x

Divide both sides by 2

10/2=2x/2

5=x

x=5

Answer is a. x=5

Check

10/5=2

6 0

3 years ago

Match the proper noun to the common noun.

egoroff_w [7]

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3 0

2 years ago

Read 2 more answers

Evaluate the expression when a is -5 and y is 7<br> a-5y

Sonbull [250]

Answer:

The answer is -40

Step-by-step explanation:

<h3><u>Given</u>;</h3>

a = -5
y = 7

a – 5y

Now,

a – 5y

(-5) – 5(7)

-5 – 35 = -40

Thus, The answer is -40

<u>-TheUnknownScientist</u><u> 72</u>

8 0

3 years ago

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A tank containing 35 gallons of water is leaking at a rat 1/4 gallon per minute. Write and expression to determine the number of

MrRissso [65]

Answer:

The expression 35 - m is used to determine the number of gallons left in the tank after m minutes.Solution:Given that a tank containing 35 gallons of water is leaking at a rate of gallon per minute. Let "m" represent the number of minutes spent Number of gallons left in the tank = initial amount of water present – leaked amount of water

Number of gallons of water left = 35 gallons – number of minutes spent rate of leakage.

Number of gallons of water left = 35 gallons – m minutes 1 gallons per minute Hence, the required expression is 35 – m

5 0

3 years ago

Use 2 unit multipliers to convert 4 square feet to square inches

allochka39001 [22]

Answer:

4 square feet is equal 576 square inches

Step-by-step explanation:

to convert 4 square feet to square inches

Now, We know that 1 feet = 12 inches

∴ $1^{2} \ feet = 12^2 \ inches\\1\ square\ feet= 144 \ square \ inches\\$

Now we need to find 4 square feet

$4 \times 1\ square\ feet= 4\times 144 \ square \ inches\\4 \ square\ feet= 576 \ square \ inches$

5 0

3 years ago