1. Zapisz w jak najprostszej postaci:
2(3x - 2y + 3z) - - 5(x - y - z)
4x(x - y z) - 2x(4x - y + z)
-3x²(x - ⅔y) + 5x(x²07xy)
-2√2(a + √2b) - a (a√2 - 2b)
2. Zapisz w postacji sum algebraicznych
(2a+b) ·c - (2ac-bc+1)
5(x-z)+2(z-x)
2x²(x - 5) - 3x(x²-3x+5)
6 (a² + b + ⅓) - 6 (a² - ½) - 3 (b + ⅓)
na dziś.
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1.
=6x-4y+6z-5x+y+z=x-3y+7z
=4x^2-4xyz-8x^2+2xy-2xz=-4x^2-4xyz+2xy-2xz
=-3x^3+2x^2y+3,5x^4y
=-2V2a-4b-a^2V2+2ab
2.
=2ac+bc-2ac+bc+1=2bc+1
=5x-5z+2z-2x=3x-3z
=2x^3-10x^2-3x^3-9x^2-12x=-x^3-19x^2-12x
=6a^2+6b+2-6a^2+2-3b-1=3b+3