Mark the locations -6 and 0 on the number line. Note that going from -6 to 0, or vice versa, will take exactly 6 steps. Put another way, the distance between 0 and -6 is 6 units. Absolute value represents distance, so it is never negative.
We say
Effectively, all we're doing is removing the negative sign.
The general form of a quadratic equation is that which is expressed in a form, ax² + bx + c = 0 To write the equation in its general form, eliminate the decimal by multiplying the equation by 10. It now becomes, 3x² + 50x - 70 = 0 The value of b is therefore 50 and the answer is the second choice.