Question

Simplify: (2p-3)² + (2p+3)²​

Answer 1

${(2p - 3)}^{2} + {(2p + 3) }^{2}$

${2p }^{2} - {3}^{2} + {2p}^{2} + {3}^{2}$

${4p}^{2} - 9 + {4p}^{2} + 9$

${8p}^{2}$

In the Third line -9 and +9 cut off

Answer 2

$=4p^{2} - 12p+9+4p^{2}+12p+9\\=8p^{2}+18$