Wykonaj działania :
a )
b) (
Wzory skróconego mnożenia:
)
Oblicz
a) 137/24 + 57/24= 80/24 = 3 1/3
b) (5/6+ 9/6) : (50/70 - 84/70) = 14/6: (-34/70)= 14/6: (-17/35)= 14/6 × (-35/17)= -490/ 102 = - 4 82/102= - 4 41/51
Wzory skróconego mnożenia
= 4x4 -20x²y + 25y²
= 8x³+6x²+6x+1
Oblicz:
83/3 - 325/4= 322/12 - 976/12= - 654/12= -54 6/12= - 54 ½
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a) 137/24 + 57/24= 80/24 = 3 1/3
b) (5/6+ 9/6) : (50/70 - 84/70) = 14/6: (-34/70)= 14/6: (-17/35)= 14/6 × (-35/17)= -490/ 102 = - 4 82/102= - 4 41/51
Wzory skróconego mnożenia
= 4x4 -20x²y + 25y²
= 8x³+6x²+6x+1
Oblicz:
83/3 - 325/4= 322/12 - 976/12= - 654/12= -54 6/12= - 54 ½