Question

Find the roots of 3x 2 + 5√5 x − 10 = 0 by using quadratic formula

Answer 1

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Answer 2

Step-by-step explanation:

here a=3,b=5\/5 and c= -10

so, D=b²-4ac

(5\/5)²-4×3×(-10)

=245

using quadratic formula

x=-b+‐\/b²-4ac

x=-5\/5+-\/245(Because b²-4ac=245)

x=-5\/5+-7\/5

x=\/5(-5+-7)

x=\/5(-5+7) ; x= \/5(-5-7)

X=\/5(2) ; x=\/5(-12)

x=2\/5 ; x= -12\/5