4 years ago

What is the discriminant of the quadratic equation 4x^2-7x-6=04x 2 −7x−6=0?

Mathematics

1 answer:

Wittaler [7]4 years ago

7 0

Answer:

145

Step-by-step explanation:

The discriminant of quadratic ...

ax^2 +bx +c = 0

is ...

d = b^2 -4ac

For your quadratic, you have a=4, b=-7, c=-6, so the discriminant is ...

d = (-7)^2 -4(4)(-6) = 49 +96 = 145

The discriminant is 145.

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3 years ago

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Sindrei [870]

$5-4(n+2)=18$

$
-4(n+2)=18-5
 

$ $Subtract \ 5 \ from \ both \ sides
$

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$

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$ 

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$Decimal \ Form: -5.25$

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