September 2018 1 42 Report

rozwiaz rownanie:

3/4x + (3/4x - 1/20x) + 20 = x

2. co wieksze:

3/4 liczby 8/7 czy 5/9 liczby 3/2

3. oblicz liczbe której 5/9 jest równe 27 1/2

4. 2-1/4 : 2 - [(5/2) do 2 potegi + 3/2 * 5/4]

5. wzory skróconego mnozenia

2[m(m+2)² - (m+1)(m-1)] - 8m (m+1) =

(m+2n)²-3(m-2n)² - 5 (m+2n)²=

x²(x-2)=

(2x=3y)²+(x-2y)(x+2y)=

(3-√5)(3+√5)-(4+√3)=

2(√2-5)²-3(√2+3)²=

3(√5-4)=

(3+ 2√2)²=

a² + 2ab + b²=

9a² = 3a = 1/4

25 - 36x²=

16x²-8xy +y²=


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