X2-4x-28=0 answer it
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Answered by
3
Answer:
2x-4x-28=0
-2x-28=0
-2x =28
x=28/-2=-14
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Answered by
2
Answer:the roots are -4 or 7
Step-by-step explanation:
x²-4x-28=0
x²-7x+4x-28=0
x(x-7)+4(x-7)=0
(x+4)(x-7)
x=-4 or x=7
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