x(3)+7x(2)+15x+9x\left(3\right)+7x\left(2\right)+15x+9x(3)+7x(2)+15x+9
x2m3−mx^2m^3-mx2m3−m
(−4) x (−3)x (−10)\left(-4\right)\:x\:\left(-3\right)x\:\left(-10\right)(−4)x(−3)x(−10)
1cos(2x)\frac{1}{\cos\left(2x\right)}cos(2x)1
x2−x−5x^2-x-5x2−x−5
x2+11x+2x2+11x+2x2+11x+2
(78)−(−28)\left(78\right)-\left(-28\right)(78)−(−28)
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