Question

(a-b²⁾(a+b²⁾

Answer 1

\(\left(a-b^2\right)\left(a+b^2\right)=a^2+ab^2-ab^2-b^2=a^2-b^2=\left(a-b\right)\left(a+b\right)\)

Answer 2

\(\left(a-b^2\right)\left(a+b^2\right)=a^2-\left(b^2\right)^2\)( HĐT )

Answer 3

(a - b²) . (a+ b²)

= a² + ab² - ab² - b²

= a² - b²

= (a - b) (a + b)

Answer 4

\(\left(a-b^2\right)\left(a+b^2\right)=a^2-\left(b^2\right)^2=a^2-b^4\)