19. find the
Sam and prodact of beroes of the
Polynomial P(x) xl-4
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Answer:
x²-4=0
x²=4
x=±2
x²+0x-4=0
∝+β= -b/a
2-2= 0/1
0=0
∝×β=c/a
2×(-2)= -4/1
-4= -4
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