Solve the quadratic equation 84x^2+16x=0 by factoring out the GCF.(1 point) Responses The solutions are x=−421 and x=0 . The solutions are x equals negative Start Fraction 4 over 21 End Fraction and x equals 0 . The solutions are x=0 and x=421 . The solutions are x equals 0 and x equals Start Fraction 4 over 21 End Fraction . The solutions are x=−4 and x=−421 . The solutions are x equals negative 4 and x equals negative Start Fraction 4 over 21 End Fraction . The solutions are x=0 and x=4 .

The correct answer is: The solutions are x=0 and x=-421.