Question

multiply.
(a^2-b^2)(a^2-b^2)​

Answer 1

$\star\:\:\:\bf\large\underline\blue{Question:-}$

• Multiply $( {a}^{2} - {b}^{2} )( {a}^{2} - {b}^{2})$

$\star\:\:\:\bf\large\underline\blue{Solution:-}$

$( {a}^{2} - {b}^{2} )( {a}^{2} - {b}^{2})$

$= ( {a}^{2} - {b}^{2} )^{2}$

$= {a}^{4} + {b}^{4} - 2 {a}^{2} {b}^{2}$

$\star\:\:\:\bf\large\underline\blue{Answer:-}$

• ${a}^{4} + {b}^{4} - 2 {a}^{2} {b}^{2}$

Answer 2

Answer:

(a^2-b^2)(a^2-b^2)

= a^2(a^2-b^2)-b^2(a^2-b^2)

= a^4-a^2b^2-a^2b^2+b^4

= a^4-2a^2b^2+b^4