in quadratic equation 2x²-5x +7=0 then what is the value of b²-4ac ?
1) -31
2) 81
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Answered by
1
Answer:
-31 is a correct answer please mark me brainlest and follow me
Answered by
2
Answer:
answer is
Step-by-step explanation:
(5^2)-4×2×7
25-56
-31
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