17-04-2020
Mathematics

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Find the sum and product of the roots.
3x^2 - 4x-7 = 0

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nurijetaam nurijetaam

17-04-2020

x1,x2(-1, 7/3)

to slove this you need the formula

from equation a=3 b=-4 c=7;

x=(-b±√b²-4ac)/2a

x=(4±√-4²-4×3×7)/2×3

x=(4±√100)/6

x=(4±10)/6

x1=4-10/6 x2=4+10/6

x1=-6/6 x2=14/6

x1=-1 x2=7/3

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