Question

a side of the square with area (4x² + 12x + 9) square units is -

Answer 1

used quadratic equation

Answer 2

s²=4x²+12x+9
s=√4x²+12x+9
=√4x²+6x+6x+9
=√2x(2x+3)+3(2x+3)
=√(2x+3)(2x+3)
=√(2x+3)²
=2x+3 units.
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