if a=1,b=4,c=-5 and find the value of b^2-4(a)(b)
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Answer:
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Answer: 240
Step-by-step explanation:
b^2 - 4 ab
substitute the given values
= 4^4 - 4 [1][4]
= 256 - 4*4
= 256-16
= 240
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