The difference of the square of a number and 4 is equal to 3 times that number. Find the positive solution.
2 answers:
Let the number be 'a':
The difference of the square of a number and 4
a^2 -4
is equal to 3 times that number.
= 3*a
a^2 -4 =3a
a^2 -3a -4=0
(a-4) (a+1)=0
solutions are: 4 and -1
Step-by-step explanation:
1-4 just did this\
:D
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