0
x^2 + 2x - 10
Does not factor
So apply the Quadratic Eq'n
x = [ -2 +/- sqrt[(2^2) - 4(1)(-10)]}/ 2(1)
x = { -2 +/- sqrt[4 + 40]} / 2
x = { -2 +/- sqrt(44]}/ 2
x = { - 2 +/- 6.6332...} / 2
x = -8.6332... / 2 = -4.3166....
&
x = 4.6332... / 2 = 2.3166...
Hencevthere are two answers.
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Is 4y squared plus 9 equals - 4 a linear equation?
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How many solutions are in x2 plus x plus 4 equals 0?
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What is the discriminant to determine how many real number solutions the quadratic equation -4j2 plus 3j-28 equals 0 has?
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What is the formula of a quadratic equation?
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Without an equality sign the given quadratic expression can't be classed as an equation but knowing how to use the quadratic equation formula would be helpful when given such problems.
