Question

What is formula for a² b² and a²-b²

Answer 1

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

${a}^{2} - {b }^{2} = ( {a}^{2} ) - 2 \times a \times b + ( {b)}^{2}$

Answer 2

Step-by-step explanation:

a²+b²+2ab=(a+b)²

a²+b²-2ab=(a-b)²

a²-b²=(a+b)(a-b)

a³+b³=(a+b)(a²+b²-ab)

a³-b³=(a-b)(a²+b²+ab)

a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca)

a³+b³+3ab(a+b)=(a+b)³

a³-b³-3ab(a-b)=(a-b)³