Question 342399
{{{h(x)=3x^2+5}}} Start with the given function.



{{{h(4b)=3(4b)^2+5}}} Plug in {{{x=4b}}}



{{{h(4b)=3(16b^2)+5}}} Square {{{4b}}} to get {{{16b^2}}}



{{{h(4b)=48b^2+5}}} Multiply



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