16x−8y+6416x-8y+6416x−8y+64
64x2+4x2z+z21664x^2+4x^2z+\frac{z^2}{16}64x2+4x2z+16z2
dydx=5(y2+25)\frac{dy}{dx}=5\left(y^2+25\right)dxdy=5(y2+25)
(x−10)(x−4); x=−5\left(x-10\right)\left(x-4\right);\:x=-5(x−10)(x−4);x=−5
(8x−y)−(−x−5)\left(8x-y\right)-\left(-x-5\right)(8x−y)−(−x−5)
(k+1)(k+1)(k+2)(k−2)(k+1)(k−1)\frac{\left(k+1\right)\left(k+1\right)\left(k+2\right)}{\left(k-2\right)\left(k+1\right)\left(k-1\right)}(k−2)(k+1)(k−1)(k+1)(k+1)(k+2)
−72=90+x-72=90+x−72=90+x
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