Question

(t-3),write down the square of with the ,(a+b)2 whole square formula

Answer 1

instead of  (a+b)², (a-b)² can be used

since (a-b)²= a² - 2×a×b + b²

(t-3)²= t² - 2×t×3 + (3)²

= t² - 6t + 9

hence, t² - 6t + 9  is the answer.

hope my answer helps you :)

Answer 2

Before you understand A - B Whole Square : (a - b)2 = a2 + b2 - 2ab, you are advised to read: