Question

hiiiiiiii everyone
answer me please ​

Answer 1

Hey friend,

Your answer is here..

1) 2y²-7y+2 = 0

a = 2

b = -7

c = 2

D = b²-4ac

= (-7)²-4×2×2

= 49-16

= 33

D = 33 > 0

D > 0

Therefore, roots are real and unequal.

2) m²+2m+9 = 0

a = 1

b = 2

c = 9

D = b²-4ac

= (2)²-4×1×9

= 4-36

= -32

D = -32 < 0

D < 0

Therefore, roots are unreal.

Hope it helps..

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Thank you.