I need help finding the solutions of the system. i fan and Medal

1. y=x²+3x-4
y=2x+2

2.
y+x²-2x-2

y=4x+5

Question

I need help finding the solutions of the system. i fan and Medal

1. y=x²+3x-4
y=2x+2

2.
y+x²-2x-2

y=4x+5

anonymous · Answer

some typos here?

anonymous · Answer

$$y=x^2+3x-4$$
$$y=2x+2$$ set 
$$2x+2=x^2+3x-4$$ and solve for$x$

anonymous · Answer

start by setting equal to zero, then solve the quadratic equation 
$$2x+2=x^2+3x-4$$
$$x^2+x-6=0$$  factor 
$$(x-2)(x+3)=0$$ set each factor equal to zero and solve

anonymous · Answer

second one is similar, set 
$$x^2-2x-2=4x+5$$

anonymous · Answer

ok 
x-2=0
  +2  +2
x=2

x+3=0
  -3  -3
x=3
So no slutions?

anonymous · Answer

@amistre64 ^ is this what he was talking about?

anonymous · Answer

(or she)

amistre64 · Answer

that is what he is talking about yes, but why would you conclude NO solutions?

anonymous · Answer

because they aren't the same number?

amistre64 · Answer