Odpowiedź :
Odpowiedź:
A = 3x + 5
B = 2x - 2
a)
A + B = 3x + 5 + 2x - 2 = 5x + 3
b)
A - B = 3x + 5 - 2x + 2 = x + 7
c)
A * B = (3x + 5)(2x - 2) = 6x² + 10x - 6x - 10 = 6x² + 4x - 10
d)
A² = (3x + 5)² = 9x² + 30x + 25
e)
B² = (2x - 2)² = 4x² - 8x + 4
a) (3x+5)+(2x-2)=3x+2x+5-2=5x+3]
b) (3x+5)-(2x-2)=3x+5-2x+2=3x-2x+5+2=x+7
c)(3x+5)(2x-2)=6x²-6x+10x-10=6x²+4x-10
d) (3x+5)²=3x²+2·3x·5+5²=9x²+30x+25
e) (2x-2)²=2x²-2·2x·2+2²=4x²-8x+4