Question

What is the cost of (2x+y) apples,if the cost 1 apple is Rs. (2x+y)?

Answer 1

Answer:

since, cost of 1 apple = RS. (2x +y)

so,

cost of (2 x + y) apples = ( 2x +y)(2x +y) RS.

= ( 2x +y)²

= ( 2x)² + y² +2* 2x*y

= 4x² +y² +4xy rupees.

$.$

Step-by-step explanation:

formula used ; ( a + b) ² = a² + b² +2ab

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Answer 2

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Cost of 1 apple = (2x + y)

Cost of (2x + y) = (2x+y) × (2x + y)

= 4x² + 2xy + 2xy + y²

= 4x² + y² + 4xy