4+6b+9b24+6b+9b^24+6b+9b2
825+(256+318)−(518−312)+(67−28)825+\left(256+318\right)-\left(518-312\right)+\left(67-28\right)825+(256+318)−(518−312)+(67−28)
7.81⋅1057.81\cdot10^57.81⋅105
3x2−13x−103x^2-13x-103x2−13x−10
x2+8x+20x^2+8x+20x2+8x+20
∫cscx(csc2x)dx\int cscx\left(csc^2x\right)dx∫cscx(csc2x)dx
(4(2(2+1)+(7−8)+3(8−5)))\left(4\left(2\left(2+1\right)+\left(7-8\right)+3\left(8-5\right)\right)\right)(4(2(2+1)+(7−8)+3(8−5)))
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