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bulgar [2K]
3 years ago
6

Using a graphical method, solve the quadratic equation:-X2 - 2x + 3 = 0​

Mathematics
1 answer:
rodikova [14]3 years ago
8 0

2-2x+3=0

5-2x=0

-5      -5

-2x=-5

/-2   /-2

x=2.5

---

hope it helps

sorry if I'm wrong

the X confused me

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Answer:

<h3>             \bold{y=(x+5)^2-27}</h3>

Step-by-step explanation:

                                      y = x^2+ 10x - 2\\\\y = x^2+ 2\cdot x\cdot5+5^2-5^2 - 2\\\\y=(x+5)^2-25-2\\\\y=(x+5)^2-27

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4 years ago
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Answer:

C

Step-by-step explanation:

If we were to draw a horizontal line from the bottom of the ladder to the bottom of the tree and then draw a vertical line from the bottom of the tree to the top of the ladder, we'd get a right triangle with legs as the distance between the bottom of the tree and the bottom of the ladder and the height of the ladder, and the hypotenuse is the length.

Here, we know the hypotenuse is 10 feet and that the bottom of the ladder is 4 feet away from the bottom of the tree, so use the Pythagorean Theorem to find the height:

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The answer is C.

7 0
3 years ago
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denis23 [38]

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I hope this helps and please don't hesitate to ask if there is anything still unclear!

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Answer:

see explanation

Step-by-step explanation:

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3 0
3 years ago
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