Write 9x+3x2-4x5+x3+2x4 in standard form.

Step-by-step explanation:

When any polynomial is written in standard form then we write the terms of polynomial with the reducing degree.

The given polynomial is 9x + 3x² - 4x⁵ + x³ + 2x⁴

So the standard form of the polynomial will be

( -4x⁵ + 2x⁴ + x³ + 3x² + 9x )

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

a

step-by-step explanation: