Discriminent of quadratic equation 2x²+4x-7=0
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Answer:
72
Step-by-step explanation:
b^2-4ac=discriminant
a=2 b=4 c=-7
dirciminent= b^2 - 4 a c
b^2 - 4 a c = (4)^2 - 4 × 2 × (-7)
= 16 - 8 × -7
= 16 + 56
= 72
b^2 - 4 a c = 72
discriminent = 72
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