1/8a2+1/4ab-1/8b2 срочно ответ

Question

1/8a2+1/4ab-1/8b2 срочно ответ

Answer 1

(а+8)^2=а^2+16а+64 2) (b-2)^2=b^2-4b+4 3)(7+c)^2=49+14c+c^2 4)(6-d)^2=36-12d+d^2 5)(2m+1)^2=4m^2+4m+1 6)(4x-3)^2=16x^2-24x+9 7)(5m-4n)^. 2=25m^2-40mn+16n^2 8)(10c+7d)^2=100c^2+140cd+49d^2.