Question

(a+b)(a-b)= a² - b² prove the following of class 7 ​

Answer 1

Answer:

(a+b) (a-b) =a²-b²

Step-by-step explanation:

a(a-b) +b(a-b)

=a²-ab+ab-b²

=a²-b²

Answer 2

Answer:

IN TERM TO PROVE IT THE STEPS ARE

(A+B)(A-B)=A²-B²

MULTIPLYING THE LHS WE GET

A² -AB+AB-B² = A²-B²

A²-B²=A²-B²(  HERE +AB AND -AB BEING LIKE TERM ARE SOLVED TO 0)

HENCE PROVED

Step-by-step explanation: