Question

The length of a side of a square is (5x + 3)cm. What is its area?

Answer 1

Step-by-step explanation:

length of the side of square is 5x+3

area= (5x+3) × (5x+3)

area= 25x^2 + 30x + 9

Answer 2

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side of a square = (5x + 3) cm

Area of a square = (side)²

= (5x + 3)² cm²

= (5x)² + (3)² + 2(5x)(3) cm²

= 25x² + 9 + 30x cm²

= (25x² + 30x + 9) cm²