Question

aye No
Date
25x²+ 30x+7 =0
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Answer 1

25x^2+39x+7=0

a=25. b=30. c=7

b^2-4ac=(30)^2-4(25)(7)=900-700=200

x=(-b+-(√b^2-4ac)/2a)

x=(-30+-√200/2×25)

x=(-30+-10√2/50)

x=(10(-3+-√2)/50)

x=(-3+-√2/5)

Therefore x=(-3+√2/5) or x=(-3-√2/5).

It may be useful!