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Need help with theses questions please

Need help with theses questions please
asked 136k views
2 votes
Need help with theses questions please

Need help with theses questions please-example-1
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User Arpho
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8.8k points

1 Answer

7 votes
Hello:
3x²+5x+2=0
delta = (5)²-4(3)(2)=1
x =( -5 ±1)/6
x= -2/3 or x=-1

t4-81=(t²)² -9² = (t²-9)(t²+9) =(t-3)(t+3)(t²+9)....(answer B)
answered
User Kanagalingam
by
7.8k points
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