2cos(x)=cos(2x)2\cos\left(x\right)=\cos\left(2x\right)2cos(x)=cos(2x)
5a+(a+b)−6(a+b)5a+\left(a+b\right)-6\left(a+b\right)5a+(a+b)−6(a+b)
(−7x+6)(7x+6)\left(-7x+6\right)\left(7x+6\right)(−7x+6)(7x+6)
∫(5x−3)4ln(x−1)dx\int\left(5x-3\right)^4\ln\left(x-1\right)dx∫(5x−3)4ln(x−1)dx
10m2n5n10m^2n\sqrt{5n}10m2n5n
12−7b+10b=1812-7b+10b=1812−7b+10b=18
∫0x(eb2)db\int_0^{\sqrt{x}}\left(\frac{e}{b^2}\right)db∫0x(b2e)db
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