√(61×61−60×60)помогите пож

Question

√(61×61−60×60)
помогите пож

Comments

√(61x61-60x60)=√(61-60)(61+60) = √(1*121) = 11

Answer 1

√(61x61-60x60)=√121=11

Answer 2

√(61×61-60×60)=√121=11.