September 2018 1 19 Report
Rozwiąż:
5 3/4 + 2 4/9 * ( - 9/11 ) =
Uprość wyrażenia:
1. ( 2x - 3y )2 - 2 ( x2 - 4xy)
2. ( pierwiastek z 3 + a ) ( pierwiastek z 3 - a ) +2 ( a +2 )2 - 3 ( 3a - 4 )

Rozwiąż i podstaw:
x = 1/2
y = -2

( -3y )2 - 2 ( x + 2y )2 + ( x - 4y ) ( x + 4y )

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