Question

а)ах²-ау²
Б)а⁴в²-в⁴а²

Answer 1

axˇ2 -ayˇ2=a(xˇ2-yˇ2)=a(x+y)(x-y)

aˇ4bˇ2 - bˇ4aˇ2=aˇ2bˇ2(aˇ2-bˇ2)=aˇ2bˇ2(a+b)(a-b)