Question

please answer it fast...​

Answer 1

Step-by-step explanation:

Q3.

perimeter =sum of all sides

x+1+3x+6y+2+x-y-9

5x+5y-6

Q4.

let K be added

K+x⁴+2x²+7=4x⁴+3x³+x²+2

K=4x⁴+3x³+x²+2-(x⁴+2x²+7)

K=4x⁴+3x³+x²+2-x⁴-2x²-7

K=3x⁴+3x³-x²-5

Answer 2

Answer:

answer for the given problem is given