Răspuns :
Răspuns:
Explicație pas cu pas:
a)
x²:2²=3²
x²=3²*2²
x²=9*4
x²=36
x=6
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b)
25²-x=24²
x= 25²-24²
x= 625-576
x=49
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c)
X:10³=10⁰
x= 10⁰*10³
x= 1*1.000
x= 1.000
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d)
441:x= 21²
441:x= 441
x= 441:441
x= 1
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e)
x-2⁵=5³
x- 32=125
x= 125+32
x= 157
-
f)
324:x=(9*2)²
324:x= 18²
324:x= 324
x= 324:324
x=1
Răspuns:
a)
x² : 2² = 3²
x² = 3² × 2²
x² = 9 × 4
x² = 36
x² = 6² ⇒ x = 6
b)
25² - x = 24²
x = 25² - 24²
x = 625 - 576
x = 49
c)
x : 10³ = 10⁰
x = 10⁰ × 10³
x = 1 × 1 000
x = 1 000
d)
441 : x = 21²
441 : x = 441
x = 441 : 441
x = 1
e)
x - 2⁵ = 5³
x = 5³ + 2⁵
x = 125 + 32
x = 157
f)
324 : x = (3² × 2)²
324 : x = (9 × 2)²
324 : x = 18²
324 : x = 324
x = 324 : 324
x = 1