Which number is the same distance away from zero as is the number 4?

25

Step-by-step explanation:

hopw this helps

That would be called absolute value (how far a number is from zero) so that means that it could be any number as long as the negative AND POSITIVE version of the number has lines on each side of it. In this case since you're using 4( which is positive) the answer would be -4( which is negative).  

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer