oblicz różnice wartosci liczbowych wyrażeń algebraicznych (1-2) dla x= -3 a)2*(2x+3)*(3x+4) b)x-5+2*(2-4x)
a)
2*(2x+3)*(3x+4)
2*(6x^{2} + 8x +9x +12)12x^{2} +16x+ 18x +2412*9 + 16*(-3) + 18* (-3) +12
108-48-54+1218
b)
x-5+2*(2-4x)x-5+4-8x-3-5+4+5450
18-50=-32
a)2*(2x+3)*(3x+4)2*(6x^2 + 8x +9x +12)12x^2 +16x+ 18x +2412*9 + 16*(-3) + 18* (-3) +12108-48-54+1218b)x-5+2*(2-4x)x-5+4-8x-3-5+4+5450 18-50=-32
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a)
2*(2x+3)*(3x+4)
2*(6x^{2} + 8x +9x +12)
12x^{2} +16x+ 18x +24
12*9 + 16*(-3) + 18* (-3) +12
108-48-54+12
18
b)
x-5+2*(2-4x)
x-5+4-8x
-3-5+4+54
50
18-50=-32
a)2*(2x+3)*(3x+4)
2*(6x^2 + 8x +9x +12)
12x^2 +16x+ 18x +24
12*9 + 16*(-3) + 18* (-3) +12
108-48-54+12
18
b)x-5+2*(2-4x)
x-5+4-8x
-3-5+4+54
50
18-50=-32