Find out minimum non-negative real values of a, b and c given that the equation x+ ax3+bx2 + cx +1 0 has real roots.

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

What expression is equivalent to 1/2(2+3x-6)

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?