Question

Please guys you must solve ASAP to get 5 stars from me.​

Answer 1

Answer:

I think answer is

X=3

thank you

Answer 2

Answer:

$x=5,-1$ and $y=12,6$

Step-by-step explanation:

$y=x^2-3x+2$ → (1)

$y-x=7$ → (2)

$y=x+7$

Substituting $y$ value in (1),

$x+7=x^2-3x+2$

$x^2-3x-x-7+2=0$

$x^2-4x-5=0$

By splitting the middle term,

$x^2+x-5x-5=0\\x(x+1)-5(x+1)=0\\(x-5)(x+1)=0$

$x-5=0\\x=0+5\\x=5$

$x+1=0\\x=0-1\\x=-1$

We know, $y-x=7$ from (2)

If $x=5$,

$y-5=7\\y=7+5\\y=12$

If $x=-1$,

$y-(-1)=7\\y+1=7\\y=7-1\\y=6$

∴ $x=5,-1$ and $y=12,6$.