Question

(2√3+2x)²=
Por favor me ajudem.

Answer 1

= (2√3 + 2x)²

= (2√3)² + 2.2√3.2x + (2x)²

= 4.3 + 8√3x + 4x²

= 12 + 8√3.x + 4x²

= 4.(3 + 2√3x + x²)

Answer 2

(2√3+2x)²=<br />(2√3+2x)(2√3+2x)=<br />4x²+8√3+12<br />∆=b²-4ac<br />∆= (8√3)²-4(4)(12)<br />∆=0 <br />se fizer o restante vai saber que x= -√3<br /><br />