1.Let the equation have roots. If the expression is positive for all xxx, then aaa lies in the intervala.a<2a < 2a<2b.2<a<32 < a < 32<a<3c.3<a<43 < a < 43<a<4d.4<a<64 < a < 64<a<6Login to continueOnly logged in users canattempt or see the solution.