Question

find the area of 7 different countries and check what units they use for measuring length/weight/volume.​

Answer 1

Answer:

sia asutrial america

this is 7 languager¹².y⁴ - a⁴.y¹²

you can write a¹² = a⁴.a^8

again, y¹² = y⁴.y^8

now use this,

= a⁴.a^8.y⁴ - a⁴.y⁴.y^8

you see that a⁴.y⁴ are common terms in both so,

= a⁴.y⁴( a^8 - y^8)

[ use,formula , x² - y² = (x - y)(x + y) ]

= a⁴.y⁴(a⁴ - y⁴)(a⁴ + y⁴)

=a⁴.y⁴(a² - y²)(a² + y²)(a⁴+y⁴)

=a⁴.y⁴(a - y)(a+ y)(a²+y²)(a⁴ + y⁴

Step-by-step explanation: