Answer:

P= 5x²+x+6 cm

Step-by-step explanation:

let:

a=(3y²+4)

b= (2y²-5x)

c= (6x+2)

P=a+b+c

P=(3y²+4)+(2y²-5x)+(6x+2)

P= 3y²+2y²+(-5x)+6x+4+2

P= 5x²+x+6 cm

Answer:

P= x + 5y^2 + 6 cm

Step-by-step explanation:

P= a+b+c

P= (3y^2 + 4) + (2y^2 - 5x) + (6x + 2)

P= 3y^2 + 2y^2 - 5x + 6x +4 + 2

P= 5y^2 + x + 6 cm

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