Question

the cost of a chocolate is rupees (2 x + y) Tina bought 2 (X + 2 y )chocolate find the total amount paid by her in terms of x.​

Answer 1

Step-by-step explanation:

expenditure = cost per item x quantity

expenditure = (2x + y) * {2(x+2y)}

expenditure = (2x + y) * (2x + 4y)

expenditure = (2x * 2x) + ( 2x * 4y) + (y * 2x) + (y * 4y)

expenditure = 4x² + 8xy + 2xy + 4y²

expenditure = 4x² + 10xy + 4y²