Question

in spite of an injured back, jesse owens was able to achieve a world record that lasted for 25 years it was beaten. what does this tells us about the athletic and his dedication towards the sport?
guys ples answer this i have exam day after tommorow means 9/8/2021​

Answer 1

¹².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