Podane wyrażenie zapisz w najprostszej postaci
a) (x+1)²-x²+2
(b)a-2)²+4-a²
(c)x+4)²+(x-4)²
d)(2a-1)²-(2a+1)²
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a)
(x+1)²-x²+2=x²+2x+1-x²+2= 2x+3
b)
(a-2)²+4-a²=a²-4a+4+4-a²= 8-4a
c)
(x+4)²+(x-4)²=x²+8x+16+x²-8x+16= 2x²+32
d)
(2a-1)²-(2a+1)²=4a²-4a+1-(4a²+4a+1)=4a²-4a+1-4a²-4a-1= -8a
a) x²+2x+1-x²+2=2x+3
b)a²-4a+4+4-a²=8-4a
c)x²+8x+16+x²-8x+16=2x²+32
d)4a²-4a+1-(4a²+4a+1)=4a²-4a+1-4a²-4a-1=-8a