2(x+1)(x-1)(x+5)=0
help me
With?
if a product equals zero one of the factors must be zero
Do you want to find the values of x or do you want to multiply it all together?
i want to multiply it all together
What's your best guess? I'll help you figure out where you need help, if you need it.
\[2(x+1)(x-1)(x+5)=0\]divide both sides by 2,\[(x+1)(x-1)(x+5)=0\]\[x=~~~ -1,~~~~~1,~~~-5\]
@idku good job at reading.
This is a cubic function, \[2(x+1)(x-1)(x+5)=0~~~~~~~~~~->~~~~~~~~~~~~~2x^3+10x^2-2x-10\]
the y-intercept is -10. To graph it (without calculus, just approximately,)|dw:1385995829352:dw| something like this, I am bad at drawing, it's going through (-5,0) (-1,0) (1,0) these are the x-intercepts and (0,-10) -- the y intercept.
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