1.

(t²-2)(t²-5)please answer

Answer»

t^4-2t^2-5t^2+10=0

t^4-7t^2+10=0

t^4-7t^2=-10

t^2(t^2-7)=-10

t^2=-10 t^2-7=-10

t=√10i t^2=-3

t=√3i

the SOLUTION is t=√10i and √3i



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