Question

Find the area of square of side (2x²-x+3)

Answer 1

given :- side of the square = (2x² - x + 3)

formula to find the area of a square is side × side or side² (since it has 4 equal sides)

now, we can either multiply it or we can use identity (a + b + c)² which's = a² + b² + c² + 2ab + 2bc + 2ac

here, a = 2x², b = -x and c = 3

hence area of the square = (2x² - x + 3)²

= (2x)² + (-x)² + (3)² + 2(2x² × -x) + 2(-x × 3) + 2(2x² × 3)

= 4x⁴ + x² + 9 - 4x³ - 6x + 12x²

= 4x⁴ - 4x³ + 13x² - 6x + 9 final answer

Answer 2

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