<span>4x(5y-x)-5y(4x-y)=20xy-4x^2-20yx+5y^2=-4x^2+5y^2=5y^2-4x^2</span>
12 because 12 cubed is 1728
Answer:
direct
Step-by-step explanation:
The standard form of an equation representing direct variation is
y = kx ← k is the constant of variation
The standard form of an equation representing inverse variation is
y =
← k is the constant of variation
y = -
x ← represents direct variation with k = - 
Answer:
2apples
Step-by-step explanation: