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jeka94
3 years ago
13

2x^2-50=x^2-1 solve by factoring step by step please

Mathematics
1 answer:
AnnZ [28]3 years ago
7 0

Answer:

x = -7, 7

Step-by-step explanation:

  • 2x²-50 = x² -1
  • 2x²-x²-50+1 = 0
  • x²-49 = 0
  • (x+7)(x-7)
  • x = -7, 7
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Find the range of the given function y = 5x + 2, where x > -2
Sergeu [11.5K]

The range of the function given the domain x > -2 is; Range; y < -8.

<h3>What is the range of the function?</h3>

The range of a function is the set of all possible outcomes of the function. In this scenario, since the domain of the function is given as X > -2. It follows from the function that at all times, the range of the function is given by; y < -8 from; y < 5(-2) +2; y< -8.

Read more on range;

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8 0
2 years ago
Addy works out with a 2.5 kilogram mass. What is the mass of the 2.5 kilogram mass in grams?
NemiM [27]

Answer:

The mass of the 2.5 kilograms mass in grams is <u>2,500 grams.</u>

5 0
3 years ago
Simplify:<br> 2(5 + w) + 3(w + 2)
AlekseyPX

Answer:

16+5w

Step-by-step explanation:

2(5 + w) + 3(w + 2)

5+w evaluates to 5+w

Multiply 2 by 5+w

we multiply 2 by each term in 5+w term by term.

This is the distributive property of multiplication.

Multiply 2 and 5

1

2 × 5 = 10

Multiply 2 and w

Multiply 1 and w

The w just gets copied along.

w

2 × w = 2w

2*(5+w) evaluates to 10+2w

w+2 evaluates to w+2

Multiply 3 by w+2

we multiply 3 by each term in w+2 term by term.

This is the distributive property of multiplication.

Multiply 3 and w

Multiply 1 and w

The w just gets copied along.

w

3 × w = 3w

Multiply 3 and 2

1

3 × 2 = 6

3*(w+2) evaluates to 3w+6

To add the polynomials 10+2w and 3w+6 we try to add or combine terms in one polynomialwith any like terms in the other polynomial.

10 + 6 = 16

2w + 3w = 5w

The answer is 16+5w

2*(5+w)+3*(w+2) evaluates to 16+5w

The final answer is

16+5w

7 0
4 years ago
Read 2 more answers
Please explain your answer.
VashaNatasha [74]

Answer: Step 3


Step-by-step explanation: She was going fine until she divided wrong.

12= 4f Divide both sides by 4 to isolate f

12/4 = f

3 = f

4 * 3 =12


4 0
3 years ago
Mr. Morgan ingested $20,000 dollars in an account earning 4.5% annual interest. How many years would it take for him to earn $5,
satela [25.4K]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
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