Question

subtract by column method of a2 + b2 b2 from free 3b2 - 4a2​

Answer 1

Answer:

A2+2b2-3b-4a2

Step-by-step explanation:

a2-4a2+2b2-3b

4a0-23b2

Answer 2

Answer:

$5a^{2} - 3b^{2}$

Step-by-step explanation:

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

$a^{2} +b^{4} - [3b^{2} - 4a^{2}]$

$a^{2} -b^{4} - 3b^{2} + 4a^{2} \\a^{2} + 4a^{2} - b^{4} -3b^{2}$

$5a^{2}$ - $3b^{4-2}$

$5a^{2} - 3b^{2}$

HOPE THIS HELPS YOU !!!!!!