oblicz wartości liczbowe :
3(x do kwadratu - 2x + 3) -2 (x do kwadratu - 5x - 1)
x=2
3(x do kwadratu - 2x + 3) -2 (x do kwadratu - 5x - 1)=3x^2-6x+9-2x^2+10x+2=x^2+4x+11, dla x=2
2^2+4*2+11=4+8+11=23
3x²-6x+9-2x²-10x-2= x²-16x+8= 2²- 32+8= 4-32+8= -20
Proszę :D
To chyba tak :P
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3(x do kwadratu - 2x + 3) -2 (x do kwadratu - 5x - 1)=3x^2-6x+9-2x^2+10x+2=x^2+4x+11, dla x=2
2^2+4*2+11=4+8+11=23
3x²-6x+9-2x²-10x-2= x²-16x+8= 2²- 32+8= 4-32+8= -20
Proszę :D
To chyba tak :P