Question

domain f(x) = 7x2 + 4x - 1​

Answer 1

Answer:

$d = 16 - 4(7)( - 1) = 16 + 28 = 44 \\ \\ domain = ( - \infty \: . \: - \frac{11}{7} ) \: union( \frac{11}{7} \: . \: \infty )$