3 years ago

The first three steps of completing the square to solve the quadratic equation x^2+4x-6=0 are shown below.

1 answer:

5 0

Take the sqrt of both sides of <span>(x+2)^2=10:

x+2 = plus or minus sqrt(10)

Solve for x: x = -2 plus or minus sqrt(10)

Evaluate x: x = -2 + sqrt(10) AND x = -2 - sqrt(10) (answers)

</span>

You might be interested in

A miner has 8 diamonds. He has 48 workers. Explain how each worker can get a piece of the diamonds.

Dmitrij [34]

Answer:

The worker can get a piece of the diamonds using 48÷8 which it is 6.

Step-by-step explanation:

I hope that it is what you're looking for. I hope this helps

6 0

2 years ago

Hey can someone tell me what -3x^2(14x^2-2x-8) equals

Ad libitum [116K]

Answer:

-42x^4 + 6x^3 + 24x^2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Write each decimal as a percent.

Mumz [18]

1. 74%
2. 15%
3. 9%
4. 61.7%
5. 83.4%

Hope this helps

4 0

3 years ago

Read 2 more answers

If h(x) = x - 7 and g(x) = x2, which expression is equivalent to (g0h)(5)?

notsponge [240]

Answer:

Step-by-step explanation:

I honestly couldn't tell you how to do this, I don't understand it. I just took the test and got this question correct. The answer is A, (5-7)^2.

6 0

2 years ago

Find the difference 726-477=

Tanzania [10]

Its 249 because the difference 726-447 is 249

7 0

3 years ago

Read 2 more answers