Factor -7x3 + 21x2 + 3x - 9 by grouping. what is the resulting expression?

is the resulting expression after grouping

Step-by-step explanation:

Given:

Now taking common from 1st 2 numbers and and 3 common from last we get

Now taking x-3 common from both numbers we get

which is the final equation after grouping

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finding the critical point for f(x,y)=(x^2)*y+y^3 1 answer mar 10, 2013

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step-by-step explanation:

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)