Question

Solve by using formula:- x = -b ± √b²-4ac/ 2a 2x^2+5x+2

Answer 1

Answer:

-2,and-1/2

Explanation:

where a = 2 ,b =5,c=5

x=[-5+{√5²-(2×2×4)}]/2×2

=[-5+{√25-16}]/4

=[-5+3]/4= -2/4= -1/2

x=[-5- { √5²-(2×2×4)}]/2×2

=[-5-{√25-16}/4

=[-5-3]/4= -8/2 = -2

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