Question

help pretty please?

Solve the following system of equations and show all work.

y = 2x2
y = –3x −1

Answer 1

@Michele_Laino

Answer 2

i got this

2x² + 3x + 1 = 0

2x² + 2x + x + 1 = 0

2x(x+1)+1(x+1) = 0
(2x+1)(x+1) = 0

2x + 1 = 0
2x = -1
x = -1/2

y = 2(-1/2)²
2(1/4)
1/2

x + 1 = 0
x = -1
y = 2(-1)²
2(1)
2

(-1/2) (1/2) (-1, 2)

Answer 3

your quadratic equation is correct!
nevertheless I got these solutions:
\[\Large {x_1} = - \frac{1}{2},\quad {x_2} = - 1\]

Answer 4

ok thank you

Answer 5

can you help with another?