Answer:
√-272
Step-by-step explanation:
4x²-8x+21=0 in standard form
discriminant= √b²-4ac
a=2
b= -8
c=21
√8²-4(4)(21)
√8²-336
√64-336
this all i can do thank you
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Answers & Comments
Answer:
√-272
Step-by-step explanation:
4x²-8x+21=0 in standard form
discriminant= √b²-4ac
a=2
b= -8
c=21
√8²-4(4)(21)
√8²-336
√64-336
√-272
this all i can do thank you