3 years ago

Given the trinomial 2x2 + 4x − 2, what is the value of the discriminan

1 answer:

8 0

$\bf \qquad \qquad\textit{discriminant of a quadratic}
\\\\\\
\stackrel{\stackrel{a}{\downarrow }}{2}x^2\stackrel{\stackrel{b}{\downarrow }}{+4}x\stackrel{\stackrel{c}{\downarrow }}{-2}
~~~~~~~~
\stackrel{discriminant}{b^2-4ac}~\hspace{3em}\implies 4^2-4(2)(-2)\implies 16+16
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
~\hfill 32~\hfill$

You might be interested in

This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the t

sergey [27]

Because it is an isosceles triangle, the two longer sides are the same length. Therefore multiply 6.3 times 2.
To find the length of the base subtract 12.6 from 15.7 to get 3.1 cm.

8 0

3 years ago

Read 2 more answers

Find the next three terms in the pattern 9,4,-1,-6,-11 then describe the pattern

Yanka [14]

You would be subtracting by 5 so the next three would be -16, -21, -26

6 0

3 years ago

Given: KLMN is a parallelogram, KA − angle bisector of ∠K LA − angle bisector of ∠L Prove: m∠KAL = 90°

sineoko [7]

Answer: angle KAL = 90°

Step-by-step explanation: The decision on a photo