Answer:
x = ± 2[tex]\sqrt{15}[/tex]
Step-by-step explanation:
Given
2x² + 11 = 131 ( subtract 11 from both sides )
2x² = 120 ( divide both sides by 2 )
x² = 60 ( take the square root of both sides )
x = ± [tex]\sqrt{60}[/tex] = ± [tex]\sqrt{4(15)}[/tex] = ± 2[tex]\sqrt{15}[/tex]
