Multiple choice If the roots of the equation $(x+a)(x+b)+(x+a)(x+c)+(x+b)(x+c)=0$ are equal, then $(a+b+c)^2 \geq ab+bc+ca$ $(a+b+c)^2 < ab+bc+ca$ $(a+b+c)^2 = ab+bc+ca$ None of these Reveal answer Fill a bubble to check yourself C Correct answer