How do you solve x2=x+6?

2 Answers
Feb 4, 2016

x2=x+6

x2x=6

x2x6=0

Now this is a Quadratic equation (in form ax2+bx2+c)

Use Quadratic formula:

x=b±b24ac2a

In this case a=1,b=1,c=6

x=(1)±(1)24(1)(6)2(1)

x=1±1(24)2

x=1±1+242

x=1±252

x=1±52

Now we are in a stage in which we take the two answers:

x=1+52,152

x=62,42

x=3,2

Feb 4, 2016

This is another way of solving this equation:

x2=x+6

x2x6=0

Factor:

(x3)(x+2)=0

x=3,2

=)