Question

2x^2+8x=x-3x^2 I will mark brainiest

Answer 1

Answer:

x=0,x=-1.4

Step-by-step explanation:

$2 {x}^{2} + 8x - x + 3 {x}^{2} = 0 \\ 5 {x}^{2} + 7x = 0 \\ x(5x + 7) = 0 \\ x = 0 \\ \\ 5x + 7 = 0 \\ x = - \frac{7}{5} = -\frac{140}{100} = -1.4$

Answer 2

Answer:

(0,-7/5)

Step-by-step explanation:

2x^2+8x=x-3x^2

2x^2+3x^2=x-8x

5x^2=-7x

5x^2+7x=0

x(5x+7)=0

x=0 or x=-7/5

solution set is (0,-7/5)