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Mathematics, 22.07.2020 22:01 ilan4225

Let $m=x^{2}+3$ Which equation is equivalent to $(x^{2}+3)^{2} +7x^{2} +21=-10$

A.) $m^{2}-7m+10=0$
B.) $m^{2}-7m+31=0$
C.) $m^{2}+7m+10=0$
D.) $m^{2}+7m+31=0$

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