mariel528639 mariel528639

01-04-2017
Mathematics

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What is the discriminant of the equation x^2+11x-10=0

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charlottekrist charlottekrist

01-04-2017

The discriminant is b^2-4ac
ax^2+bx+c=0
x^2+11x-10=0

11^2-4(1)(-10)
1. Simplify 11^2 to 121
121-4(1)(-10)

2. Simplify 4*1*-10 to -40
121-(-40)

3. Simplify brackets
121+40

4. Simplify
161
Your discriminant is 161

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