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One of the roots is given. Find the other root.$-7 w^{2}+b w-5=0 ;-1$
$-\frac{5}{7}$
Algebra
Chapter 5
QUADRATIC FUNCTIONS AND COMPLEX NUMBERS
Section 7
Sum and Product of the Roots of a Quadratic Equation
Equations and Inequalities
Quadratic Functions
Complex Numbers
Polynomials
Campbell University
McMaster University
Harvey Mudd College
University of Michigan - Ann Arbor
Lectures
01:32
In mathematics, the absolu…
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(a) Compute the discrimina…
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For each equation, state t…
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for this problem. This problem early. Only we're not gonna use this fact to find the other room. Really use the fact that the product of the two routes is equal to see over a and so I'm actually gonna make this image a little bit bigger. Don't put it right here, because this is the one that's gonna be more useful. And let's get rid of this one and put this one up here Nice and big to display, All right. And so we know that one of the routes is negative one. And we know our C and A values, so I can plug in a negative one here for route one, multiplied by route to, And I know it's gonna be equal to a C value of negative five over in a value of negative seven in negative five over negative seven is the same as 5/7. But we have negative one times route to. So we have a negative route to equal to a positive 5/7, meaning a positive Route two is equal to a negative 5/7. If I multiply both sides of the equation by negative one
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