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b)(2a+3)²=4a²+12a+9
c)(4x+5y)²=16x²+40xy+25y²
d)√(2+b)²=2+b
e)(3a+√3)²9a²+6√3a+3
3.58 Oblicz
a)(√2-√3)²=2-2√6+3=5-2√6
b)(2√2-3√3)²=8-12√6+27=35-12√6
c)(3√5-4√6)²=45-24√30+96=141-24√30