Question

Find the solution and help.​

Answer 1

Answer:

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$: { \implies{ \rm{ {(2x + 3y)}^{2} }}} \\ \\ : { \implies{ \rm{ {(2x)}^{2} + {(3y)}^{2} + 2(2x)(3y) }}} \\ \\ : { \implies{ \rm{4 {x}^{2} + 9 {y}^{2} + 12xy }}}$

________________

$\: : { \implies{ \rm{ {(4p - 3q)}^{2} }}} \\ \\ : { \implies{ \rm{ {(4p)}^{2} + {(3q)}^{2} - 2(4p)(3q) }}} \\ \\ : { \implies{ \rm{16 {p}^{2} + 9 {q}^{2} - 24pq }}}$

Used identities:

• ${ \sf{ {(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab }}$

• $\: { \sf{ {(a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab }}$