Question

Solve the system of equations using substitution.
y=x^2+3x+2
y=2x+3

Answer 1

so use substitution.
2x +3 = x^2 + 3x + 2

Answer 2

just plot that y in

\[ 2x+3=x^2+3x+2\]

Answer 3

beat me!

Answer 4

^^

Answer 5

get everything on one side, then use the quadratic formula.

Answer 6

i got x^2+x-1 but i cant factor that.

Answer 7

a = 1
b = 1
c = -1
quadratic formula
\[x = \frac{ -b \pm \sqrt{b^2 - 4ac} }{ 2a }\]

Answer 8

Thanks.