5. cho tam giác abc vuông tại a , đường cao ah 

giải bài toán trong mỗi t.hợp sau 

a, cho AH = 16, BH=25,TÍNH AB, AC,BC,CH

B, CHO AB =12  , BH=6.TÍNH AH . AC,BC,CH

Mong mọi người giúp ạ!
${(x^2 + x + 1)}^2 + 8x.(x^2 + x\hspace{0.17em}+ 4) + 15x^2 = 0$

ai giải giùm đi

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Rearrange the sentences to make meaningful sentencesChemistry/can/ school/ is/ because/favorite/ experiments/ I/ My/ many/ subject/ at/ do/./A. My favorite subject is...

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