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If: x^2 +2x -8 then it is (x-2)(x+4) when factored

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7y ago

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When the roots are equal of a quadratic equation?

Write the quadratic equation in the form ax2 + bx + c = 0 The roots are equal if and only if b2 - 4ac = 0. The expression, b2-4ac is called the [quadratic] discriminant.


What is radical expression?

an alg expression involving square roots, cube roots, etc


What is x to the power of 2 plus 10X minus 4 factored?

There is no simple factorisation because the quadratic expression does not have rational roots. Irrational roots are not used in factorisation.


How many roots does a quadratic equation in one variable have?

A quadratic equation has two roots. They may be similar or dissimilar. As the highest power of a quadratic equation is 2 , there are 2 roots. Similarly, in the cubic equation, the highest power is 3, so it has three equal or unequal roots. So the highest power of an equation is the answer to the no of roots of that particular equation.


In math what is the expression containing irrational roots?

Surd


What is a mathematical expression involving irrational roots?

surd


What are equal sized branching roots called?

roots


How do you find roots of z5 using demorves theorem?

z5 is an expression, not an equation and so cannot have roots.


How do you determine the values for which a rational expression is undefined?

A rational expression is not defined whenever the denominator of the expression equals zero. These will be the roots or zeros of the denominator.


What does the expression 'deep roots' mean?

It means to have deep origins.


How would you describe the roots when b2-4ac is 0?

The roots will be equal


What are equal factors?

square roots