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lesya [120]
3 years ago
13

60 POINTS PLEASE HELP ITS URGENT 1. Write a quadratic equation that can be solved by factoring. Solve your equation and show and

explain all your work. 2. In this unit you have learned about several different ways to solve quadratic equations. How do you determine which method to use when you’re trying to solve a quadratic equation?
Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
8 0
Step 1: try to solve the equation by factoring. Be sure that your equation is in standard form (ax^2+bx+c=0) before you start your factoring attempt.
Step 2: look at the side of the equation containing the variable. Is that side a perfect square? if it is then you can solve the equation by taking the square root of both sides of the equation. Don't forget the plus and minus sign in your equation once you have taken the square root
Step 3: If the coefficient of the squared term is 1 and the coefficient of the middle terms even completing the square is a good method to use.
Step 4: The quadratic formula will work on any quadratic equation. If using the formula results in awkwardly large numbers under the radical sign another method of solving may be a better choice.
Vika [28.1K]3 years ago
5 0

you have a quadratic equation that can be factored, like x2+5x+6=0.This can be factored into(x+2)(x+3)=0.

So the solutions are x=-2 and x=-3.

2. 

<span><span>1. Try first to solve the equation by factoring.  Be sure that your equation is in standard form (ax2+bx+c=0) before you start your factoring attempt.  Don't waste a lot of time trying to factor your equation; if you can't get it factored in less than 60 seconds, move on to another method.
</span><span>2. Next, look at the side of the equation containing the variable.  Is that side a perfect square?  If it is, then you can solve the equation by taking the square root of both sides of the equation.  Don't forget to include a ± sign in your equation once you have taken the square root.
3.</span>Next, if the coefficient of the squared term is 1 and the coefficient of the linear (middle) term is even, completing the square is a good method to use.
4.<span>Finally, the quadratic formula will work on any quadratic equation.  However, if using the formula results in awkwardly large numbers under the radical sign, another method of solving may be a better choice.</span></span>
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vfiekz [6]

42-x=58

or, -x=58-42

with change in side sign also chamges we change sides to make like terms in one side and unlike in amother side.

or, -x= 16

or,x=-16.

therefore x=-16...

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astraxan [27]

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3 years ago
I need to check a number line of 0 to 4 using 1/3
vivado [14]
Draw a straight line. Label the left side "0" and then make lines with
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3 years ago
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Ratling [72]
The minimum and maximum of the set alone is 25 and 60. The range of that 35. So, the number is not less than or more than 25 or 60.
The set in order:
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The median is 48, so the number has to be less than 48. Let's see if the number may be less than 36.
36+48
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So, the number is right between 36 and 48. 
43.5×2
87
Let's subtract 48 from that
87-48
39
So, the mssing value is 39. Let's check.
25, 36, 39, 48, 52, 60
48+39
87÷2
43.5
So the missing value is 39.
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3 years ago
There are 20 marbles in a bag. 1/5 are red and others are blue. What is the ratio of red to blue marbles
Levart [38]

Answer:

4:16 or 1:4

Step-by-step explanation:

1/5 of 20 = 4

there are 4 red marbles

there are 16 blue marbles

4:16 or 1:4

3 0
2 years ago
Read 2 more answers
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