Question

(7y^2-y-2)-(3y^2+2y+8)
Please tell me step by step​

Answer 1

$(7y {}^{2} - y - 2) - (3y {}^{2} + 2y + 8) \\ (7y{}^{2} - 3y {}^{2} ) - ( - y - 2y) - ( - 2 - 8) \\ 4y {}^{2} - 3y - 10$