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Ipatiy [6.2K]
4 years ago
5

What are the solutions to the equation x2 +3x-4=0

Mathematics
2 answers:
Serhud [2]4 years ago
4 0
x^{2} +3x-4=0

You wan't to get it into a format of (x+a)(x+b)=0
where a+b = 3 (the one from the 3x)
and where a*b= -4 (from the last -4)

(x+4)(x-1)=0
See how 4+(-1) = 3 and (4)(-1) = -4

now find what values of x would make the equation equal 0
x=-4
(-4+4)(-4-1) = (0)(-5) = 0

x=1
(1+4)(1-1) = (5)(0) = 0
frutty [35]4 years ago
4 0
X^2+3x-4=0
(x-1)(x+4)=0
x-1=0 x+4=0
x=1 x=-4
The solutions are 1 and -4.
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x=3

本题已由中国数学会官方解答(现有会员:3人)  

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What is -24m-16=-56 and show work
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3/5

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a ships triangular signal flag has a base of 8 in and an area of 64 in. What is the height of the signal flag? SHOW WORK
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The formula in computing the area of the triangle is:

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4 years ago
Round 5.05870925358 to 4 decimal places.
aniked [119]

Answer:

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4 0
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2/3 cup of oatmeal is needed to make 10 granola bars. how many such granola bars can be made with 20 cups of oatmeal? Kindly ple
aleksandrvk [35]
2/3 cup of oatmeal - 10 granola bars

When the number of cups of oatmeal increases, the number of granola bars also increases.
If you use for example twice as many cups of oatmeal, you'll make twice as many granola bars.
Therefore, the first step is to calculate how many times 20 cups of oatmeal is more than 2/3 cup of oatmeal. To do it, divide 20 by 2/3.

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