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Ipatiy [6.2K]
3 years ago
5

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

Mathematics
2 answers:
Serhud [2]3 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]3 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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