Solve the quadratic equation 84x^2+16x=0 by factoring out the GCF. (1 point) Responses The solution are x=−421 and x=0 . The solution are x is equal to negative 4 over 21 and x is equal to 0. The solution are x=−4 and x=−421 . The solution are x is equal to negative 4 and x is equal to negative 4 over 21. The solution are x=421 and x=0 . The solution are x is equal to 4 over 21 and x is equal to 0. The solution are x=0 and x=4 .
