X: squar-y: square-2xy+1 solve it

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30