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lidiya [134]
2 years ago
10

ILL GIVE BRAINLIEST

Mathematics
1 answer:
weqwewe [10]2 years ago
5 0

Answer:

See below

Step-by-step explanation:

I'll provide an example to help you. Let's say we were solving x^2+5x-7=0 and we wanted to factor the quadratic on the left side. We can't do that because the factors of -7 don't add up to 5. So we'd have to use the quadratic formula. The quadratic formula is essentially the last resort that will solve all quadratic equations, so it could be seen as a preferred method. But, unless you can factor the quadratic, it's much easier to solve.

Now let's do another one. x^2+5x+6=0 for example can be written as (x+2)(x+3)=0 and we can easily get x=-2 and x=-3 as solutions since plugging them into the factors would produce 0 (from the Zero Product Property). If we used the quadratic formula, it would take more time to plug in the variables and solve when we can just simply factor.

Hopefully, this explanation helps you to think of your discussion post!

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X²+x=0<br> x³-25x=0<br> x²=4x<br> 4x²-4x=1
-BARSIC- [3]

Answer:

x²+ x = 0

x ( x +1 ) = 0

x = -1

x³-25x=0

x ( x² - 25 ) = 0

x² = 25

x = 5

x²=4x

x² - 4x = 0

x ( x- 4 ) = 0

x = 4

4x²-4x=1

4x²-4x - 1 = 0

4 x² - 2x - 2x - 1 = 0

2x ( 2x - 1 ) - 1 ( 2x- 1 ) = 0

2x- 1 ) ² = 0

2x = 1

x = 1/ 2

mark me as brainliest

7 0
3 years ago
4. What number is 5 more than 3? Show how you calculated your answer. 8 16​
Airida [17]

Answer:

35

Step-by-step explanation:

To find one part of five, divide 21 by 3, which gives you 7. Now multiply that 7 by five (to give you the full five parts) and you get 35.

8 0
3 years ago
Read 2 more answers
What are the zeros of the quadratic function f(x)<br> 128² - 10x - 3?
Temka [501]

Answer:

When 2x^2 - 10x - 3 is plugged into the quadratic equation, the resulting zeroes are x = (5 + sqrt(31))/2 and (5 - sqrt(31))/2. Hope this helps!

Step-by-step explanation:

  • <em>If my answer is incorrect, please correct me! </em>
  • <em>If you like my answer and explanation, mark me as brainliest!</em>

<em />

4 0
3 years ago
Read 2 more answers
Solve for x and y.<br>x=<br>y= ​
lianna [129]

Answer:

x=1

y=7

I mean it's just a guess

6 0
3 years ago
A liter is how many quarts
iogann1982 [59]

Answer:

About 1.05 US quart

4 0
3 years ago
Read 2 more answers
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