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Algebra

The number of real solutions of the equation (9/10)^x = – 3 +x – x^2 is..Please explain the solution.

Profile image of Meghendra Agrawal
7 Years agoGrade
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1 Answer

Profile image of Aditya Gupta
7 Years ago
we see that  – 3 +x – x^2 = – [(x-1/2)^2+11/4] which is always less than zero. but LHS is (9/10)^x which is always greater than zero, hence no real solution exists