Question

urgent!!!!!!!!!!!!!!!!!!!!!

Answer 1

a) x/ y x  3x/y³ =  3x²/y³

b) (5x²y) / ( y-1)   x   (2xy)/y+1=   (10x³y²)/ (y-1)(y+1) = 10x³y²/y²-1  (nu poti simplifica)

c) (4(x+1))/ (x-2) x  ( x-1 )/(x-2)= ( 4 ( x² - 1)) / (x-2)²=  4x²-4  / x²-4x+4  

d)  8y /  7xy + 7x     x       y+1/ y=    (8y²+8y )/ 7xy² + 7xy (poti da factor comun pe y) = >

y( 8y+8)  /   y( 7xy+7x)=   8y+8/ 7xy+7x