Question

the value of (a^2+b^2) - (a^2-b^2)​

Answer 1

Answer:

2b^2

Step-by-step explanation:

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

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

= 2b^2

Answer 2

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

${a}^{2} + 2ab + {b}^{2} - {a}^{2} + 2ab - {b}^{2}$

$2ab + 2ab$

$4ab$