3 years ago

Pleasee help from anyone

Mathematics

2 answers:

Brut [27]3 years ago

6 0

Answer:

discriminant = 120

2 real roots ( or 2 x intercepts)

Step-by-step explanation:

f(x) = -7x^2 +8x+2

The discriminant is

b^2-4ac

Where ax^2 +bx+c

so a = -7 b = 8 and c =2

(8)^2 -4(-7) *(2)

64 +56

120

If the discriminant is >0 we have 2 real roots

If the discriminant =0 we have 1 real root

If the discriminant <0 we have 2 complex root ( or no real roots)

Margaret [11]3 years ago

4 0

Answer:

18 and 22.8 will be your answer

Step-by-step explanation:

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