add math 高手请进！！

tivon

add math 中4 chapter1 难题求解！！！！
f(x)=hx+k,f（square）（x）=9x+16

(a)find the value of h and the corresponding values of k
(b)considering h>0,find the values of x such that f(x suuare)=8x

xaxcc

(a) f[hx+k] = h(hk+k)+k = h^2x+hk+k then compare the coefficient~

(b) f(x^2)= hx^2+k since h>0 mean h = 3 from ur answer (a)
     f(x^2)= 3x^2+4 = 8x

correct?

tivon

yayaya,thx guy!

ferrari1578

PMR/SPM 1 对1 补习
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数学 maths(form 1,2,3)
普通数学 modern maths(form 4,5)
高级数学add maths(form 4,5)
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