Question

determinati numărul natural x care verifica egalitatea​

Answer 1

a)x²:2²=3²

x²=3²×2²=6²

x=6

b)25²-x=24²

25²-24²=x

(25+24)(25-24)=x

49×1=x

x=49

c)x:10³=10⁰

x=1×10³

x=10³

d)441:x=21²

441=21²×x

21²×1=21²×x

x=1

e)x-2⁵=5³

x=5³+2⁵=125+32

x=157

f)324:x=(3²×2)²

18²:x=(3²×2)²

18²:x=18²

18²:x=18²:1

x=1

Answer 2

a) x²:4 = 9

x² = 9*4

x² = 36

x = V36 = 6

b) 625-x² = 576

x² = 625-576

x² = 49

x = V49 = 7

c) x:1000 = 1

x = 1*1000

x = 1000

d) 441:x = 441

x = 441:441

x = 1

e) x-32 = 125

x = 125+32

x = 157

f) 324:x = (9*2)²

324:x = 324

x = 324:324

x = 1