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derivada de 3x.$(2x+9)^{2}$
factorize: $5y^{2}$ -45
2x+y=5
2^3
find the mode of 31 29 33 37 43 38 33 and 40
factorize : $x^{2}$ -2hx+ $h^{2}$
a copper statue has a volume of 35cmsquared and a mass of 312.9g .
work out the density of the statue
1 + 1
-3x+6y=0
