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4 years ago

When the solution of x2 - 9x - 6 is expressed as what is the value of r? NIH

Mathematics

1 answer:

Olegator [25]4 years ago

5 0

Hey there! :)

Answer:

r = 105.

Step-by-step explanation:

In the quadratic formula, √r = ${\sqrt{b^{2}-4ac }$

Where a = 1, b = -9, and c = -6. Therefore:

√r = √(-9)² - 4(1)(-6)

√r = √81 -4(-6)

√r = √81 + 24

√r = √105

Therefore, r = 105.

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