Question

Solve all the values of x 21x^2+7x=0

Answer 1

Step-by-step explanation:

see the image attached above.

Answer 2

Answer:

$21x^{2} +7x=0\\ => 21x^{2} =-7x\\=>\frac{21x^{2} }{7x}=-\frac{7x}{7x} \\=> 3x=-1\\=>x =-\frac{1}{3}$