Answer
$\dfrac{2}{7},4$
Work Step by Step
Given: $70x^2=30x-8$
or, $70x^2-30x+8=0$
Need to use factorization to solve the quadratic equation.
This can be factorized as follows:
$70x^2-28x-2x+8=0$
or, $(7x-2)(x-4)=0$
Now $7x-2=0$ and $x-4=0$
Roots are $x= \dfrac{2}{7},4$