Question

simplify the following
$({82}^{2} ) - ( {18}^{2} )$
(2.) 102 × 104​

Answer 1

1) by using identity

a^2-b^2=(a+b)(a-b)

82^2=6724

18^2=324

(6724+324)(6724-324)

(7048)(6400)

2)102x104=10608

hope it help

Answer 2

Answer:

Step-by-step explanation:

We know that,that

(a-b)²=(a-b)(a-b)

(82-18)²

=(82-18)(82-18)

=(64)(64)