When the written expression 2x⁴ + 5x – 8x² + 12x³ is written with the terms in decsending order (from highest to lowest), which list represents the coefficients of the term?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.