Question

5x²+3=x²-7x


Ayuden please​

Answer 1

Respuesta:

5x²+3=x²-7x

5x²+3-x²+7x=0

4x²+3+7x=0

4x²+7x+3=0

4x²+4x+3x+3=0

4x(x+1)+3(x+1)=0

(x+1)(4x+3)=0

x+1=0

4x+3=0

x=-1

x=-3/4

x1=-1   x2=-3/4