Rewrite the polynomial −2x3+4x5−3x2−7 in descending order, using coefficients of 0 for any missing terms. which term is first, second, third, etc., when the polynomial is written in this way? match the term number to the appropriate term.

Step-by-step explanation:

To write the complete polynomial in descending order, we will start with the term which has the highest power and then add the missing terms in it using 0 as the coefficient for x:

First term :

Second term:

Third term:

Fourth term:

Fifth term:

Sixth term:

-4.6(2.2x+3y=15.25) = -10.12x - 13.8y = -70.15

2.2(4.6x+2.1y=18.325) = 10.12x - 4.62y = 40.315

simplify

-4.62y = -29.835

divide both sides by -4.62 to isolate y

y= 6.46

2.2x + 3 (6.46) = 15.25

2.2x + 19.38 = 15.25

subtract 19.38 to both sides

2.2x = -4.3

divide 2.2 to both sides

x= -1.95

I hope that this helped :)