Wednesday

April 16, 2014

April 16, 2014

Posted by **Serra** on Monday, August 20, 2007 at 9:16am.

-x2-5x-6

x=-3

x=-2

I got 0 for the first one and 0 for the second. Am I figuring them wrong? (and that is an x squared, not 2x)

-(-3)^2 -5(-3)-6

-(9)+15-6=0

Thanks!

you are right in both cases

-x^2-5x-6

=-(x^2+5x+6)

=-(x+2)(x+3)

notice if this had been an equation equal to zero,

x=-2 and x=-3 would have been solutions.

That is why both values gave you a zero answer.

**Related Questions**

Math - Q.1)If one zero of the polynomial 3x2-kx-2 is 2 find the other zero.allso...

math - algebra - find the values of each of the following polynomials for the ...

algebra 2 - find the value of this polynomials for the given values of the ...

math - With regards to question J: The variables x and y are connected by the ...

algebra2 - solve the equation: First: x + 3y = 5 Second: 3x - y = 5 should i use...

Math - i need help finding the slope of the line that passes through each pair ...

word problem - Bob’s Barber Shop estimates their gross revenue for the second ...

Algebra - A function is given. Determine the average rate of change of the ...

college algebra - A function is given. Determine the average rate of change of ...

polynomial function - Please check my answers. Find the y-intercept of the ...