5x(x−3)+11x−95x\left(x-3\right)+11x-95x(x−3)+11x−9
(49) (−20)\left(49\right)\:\left(-20\right)(49)(−20)
4x2+2x=2(2x−2)4x^2+2x=2\left(2x-2\right)4x2+2x=2(2x−2)
4⋅7−64\cdot7-64⋅7−6
2sec(3x)=42^{\sec\left(3x\right)}=42sec(3x)=4
dydx=x5+2y\frac{dy}{dx}=x^5+2ydxdy=x5+2y
ddx−y=5\frac{d}{dx}-y=5dxd−y=5
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