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Expand and simplify.

$\left(-8x-5\right)^{2}$

$\left(-8x+9y\right)^{2}$

$\left(5+4x\right)^{2}$

$\left(7y-3x\right)^{2}$

$\left(5x+4\right)^{2}$

$\left(3+2x\right)^{2}$

$\left(-4-5y\right)^{2}$

$\left(3y+8x\right)^{2}$

$\left(-7y+3\right)^{2}$

$\left(-5y+6\right)^{2}$