Question

(t-3)^2-(t+3)^2equals to​

Answer 1

Step-by-step explanation:

$(t - 3) ^{2} - (t + 3) ^{2} \\ t ^{2} - 3t + 9 - (t ^{2} + 3t + 9) \\ - 6t$

Answer 2

Answer:

Given

(t - 3)² - ( t + 3)²

= ( t² - 2 × t × 3 + 3²) - ( t² + 2 × t × 3 + 3²)

= ( t² - 6t + 9 ) - ( t² +6t + 9)

= t² - 6t + 9 - t² - 6t - 9

= - 12t

In this question we use formulas are

(a+b)² = a²+2ab+ b²

(a-b)² = a²- 2ab +b²