Question

Solve the quadratic inequality. Write the solution set in interval notation.

x2 + 7x ≤ -12

Answer 1

\[x^2+7x+12<0\]
\[(x+3)(x+4)<0\] zeros are at -4 and -3 and since this is a parabola that faces up it will be negative between the zeros. your answer is
\[-4<x<-3\]