$y^2-2\cdot y.0+0^2$
$2\cdot5^2-2^3$
$\left(\frac{1}{2}x^2+\frac{3}{4}y^3\right)\left(\frac{1}{2}x^2-\frac{3}{4}y^3\right)$
$h\left(x\right)=\left(7x^4+8x^2\right)^9$
$\sin\left(x-20\right)=0.678$
$x^2+0.6x+0.09<0$
$\left(\sin x-\cos x\right)^{2}=1-2s$
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