Question

(a+b)(a-b)=____yadi=5,b=4 ho 1point​

Answer 1

$\huge\star\underline{\mathtt\red{A}\mathtt\green{N}\mathtt\blue{S}\mathtt\purple{W}\mathtt\orange{E}\mathtt\pink{R}}\star\:$

(a+b)(a-b)= (a)² - (b)²

=> If a = 5 and b = 4, then

=> (5+4)(5-4)

=> (5)² - (4)²

=> 25 - 16

=> 9