If h(5-2x) = sqrt(x^2+3x+5) for all real number x, what is the value of h(3)?

1 Answer
Mar 22, 2017

h(3) = 3

Explanation:

For h(3) , we have to find the value of x.

5-2x = 3

2x=2

x=1

So,
h(5-2x) = sqrt(x^2+3x+5)-------(1)

For h(3), put x =1 in eq^n 1

h(3) = sqrt(1^2+3xx1+5)

h(3) = sqrt(1+3+5)

h(3) = sqrt(9)

h(3) = 3