Question

Find the domai nand the range of the funvtion f(x)=x^2+3x+5/

Answer 1

put the value of x=^2

f(x)=x^2+3x+5

f(^2)=^2×^2+3^2+5

=2+3^2+5

=2+5+3^2

= 7+3^2

=10^2

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